Merge branch 'main' of https://github.com/bulwarkmail/webmail

CHANGELOG.md

@@ -1,5 +1,31 @@
 # Changelog
 
+## 1.5.2 (2026-04-25)
+
+### Features
+
+- **Plugins**: New `composer-sidebar` slot and `ui:composer-sidebar` permission — plugins can now render a panel on the left side of the New Message dialog. See `repos/subway-surfers` for an example
+- **Plugins**: Manifests can declare `frameOrigins` — a strictly-validated list of `https://host` origins the plugin needs to embed. The proxy reads the union from enabled plugins and merges it into the host CSP `frame-src`, so the host CSP no longer needs to know about specific embed providers
+
+## 1.5.1 (2026-04-25)
+
+### Features
+
+- **Stalwart**: OAuth auto-setup with dialog and validation for origin and issuer URLs
+- **Mail**: Right-click context menu on the folders sidebar
+- **Mail**: Replace folder `prompt()` calls with a proper modal dialog
+- **Calendar**: Add 'Today' button to the desktop calendar toolbar
+- **Junk**: Setting to show avatars in the Junk folder (off by default)
+
+### Fixes
+
+- **Admin**: Restore admin panel after Stalwart v0.16 REST API removal
+- **Viewer**: Restore broken viewer toolbar actions and improve the mobile menu (#220)
+- **Folders**: Stop flicker on background folder refresh
+- **Email**: Preserve search/filter on batch move and archive
+- **Email**: Preserve search/filter when moving emails via drag-drop
+- **i18n**: Improve Korean flag
+
 ## 1.5.0 (2026-04-22)
 
 ### Breaking Changes

README.md

@@ -12,7 +12,7 @@ A modern, self-hosted webmail client for [Stalwart Mail Server](https://stalw.ar
 
 [![License: AGPL v3](https://img.shields.io/badge/license-AGPL%20v3-blue.svg?logo=gnu&logoColor=white)](LICENSE)
 [![Discord](https://img.shields.io/discord/1482128142939455674?color=7289da&label=discord&logo=discord&logoColor=white)](https://discord.gg/tYCujymGrT)
-[![Version](https://img.shields.io/badge/version-1.5.0-green.svg?logo=git&logoColor=white)](CHANGELOG.md)
+[![Version](https://img.shields.io/badge/version-1.5.1-green.svg?logo=git&logoColor=white)](CHANGELOG.md)
 [![Docker](https://img.shields.io/badge/docker-ghcr.io%2Fbulwarkmail%2Fwebmail-blue?logo=docker&logoColor=white)](https://ghcr.io/bulwarkmail/webmail)
 
 </div>
@@ -62,7 +62,7 @@ Bulwark is a full webmail suite – not just an inbox. It bundles the four apps
 - **Contacts** – multiple address books, groups, vCard import/export
 - **Files** – Stalwart's JMAP FileNode storage with previews and folder upload
 
-Plus the infrastructure around them: OAuth2 / OIDC SSO, TOTP 2FA, multi-account (up to 5 at once), 14 languages, PWA install, dark/light themes, a plugin system with an extension marketplace, and a Stalwart admin dashboard.
+Plus the infrastructure around them: OAuth2 / OIDC SSO, TOTP 2FA, multi-account (up to 5 at once), 14 languages, PWA install, dark/light themes, a plugin system with an extension marketplace, and a admin dashboard.
 
 Full feature list: **[FEATURES.md](FEATURES.md)**.
 

VERSION

@@ -1 +1 @@
-1.5.0
+1.5.2

app/[locale]/calendar/page.tsx

@@ -47,7 +47,11 @@ import { getEventStartDate } from "@/lib/calendar-utils";
 import { useTaskStore } from "@/stores/task-store";
 import { useContactStore } from "@/stores/contact-store";
 import { cn } from "@/lib/utils";
-import type { CalendarEvent, CalendarParticipant } from "@/lib/jmap/types";
+import type { Calendar, CalendarEvent, CalendarParticipant, CalendarRights } from "@/lib/jmap/types";
+import { ShareCollectionDialog } from "@/components/settings/share-collection-dialog";
+import { ConfirmDialog } from "@/components/ui/confirm-dialog";
+import { useConfirmDialog } from "@/hooks/use-confirm-dialog";
+import { CreateCalendarModal } from "@/components/calendar/create-calendar-modal";
 import { getUserParticipantId } from "@/lib/calendar-participants";
 import { generateBirthdayEvents, createBirthdayCalendar, BIRTHDAY_CALENDAR_ID } from "@/lib/birthday-calendar";
 import { debug } from "@/lib/debug";
@@ -72,7 +76,8 @@ export default function CalendarPage() {
     calendars, events, selectedDate, viewMode, selectedCalendarIds,
     isLoading, isLoadingEvents, supportsCalendar, error,
     fetchCalendars, fetchEvents, createEvent, updateEvent, deleteEvent, rsvpEvent,
-    setSelectedDate, setViewMode, toggleCalendarVisibility, updateCalendar,
+    setSelectedDate, setViewMode, toggleCalendarVisibility, updateCalendar, shareCalendar,
+    removeCalendar, clearCalendarEvents,
     refreshAllSubscriptions, icalSubscriptions,
   } = useCalendarStore();
   const { firstDayOfWeek, timeFormat, showWeekNumbers, enableCalendarTasks, showTasksOnCalendar, calendarHoverPreview, showBirthdayCalendar, birthdayCalendarColor, updateSetting } = useSettingsStore();
@@ -91,6 +96,11 @@ export default function CalendarPage() {
   const [showImportModal, setShowImportModal] = useState(false);
   const [showSubscriptionModal, setShowSubscriptionModal] = useState(false);
   const [editingSubscription, setEditingSubscription] = useState<string | null>(null);
+  const [sharingCalendarId, setSharingCalendarId] = useState<string | null>(null);
+  const [defaultCalendarIdForCreate, setDefaultCalendarIdForCreate] = useState<string | undefined>(undefined);
+  const [showCreateCalendar, setShowCreateCalendar] = useState(false);
+  const { dialogProps: confirmDialogProps, confirm: confirmAction } = useConfirmDialog();
+  const tMgmt = useTranslations("calendar.management");
   const [editEvent, setEditEvent] = useState<CalendarEvent | null>(null);
   const [defaultModalDate, setDefaultModalDate] = useState<Date | undefined>();
   const [defaultModalEndDate, setDefaultModalEndDate] = useState<Date | undefined>();
@@ -1102,6 +1112,42 @@ export default function CalendarPage() {
                 }
                 updateCalendar(client, calendarId, { color });
               } : undefined}
+              onShareCalendar={client ? (cal) => setSharingCalendarId(cal.id) : undefined}
+              onCreateEvent={(cal: Calendar) => {
+                setDefaultCalendarIdForCreate(cal.id);
+                openCreateModal();
+              }}
+              onClearCalendar={client ? async (cal: Calendar) => {
+                const ok = await confirmAction({
+                  title: tMgmt("clear_events"),
+                  message: tMgmt("confirm_clear", { name: cal.name }),
+                  variant: "destructive",
+                  confirmText: tMgmt("clear_events"),
+                });
+                if (!ok) return;
+                try {
+                  const count = await clearCalendarEvents(client, cal.id);
+                  toast.success(tMgmt("events_cleared", { count }));
+                } catch {
+                  toast.error(tMgmt("error_clear"));
+                }
+              } : undefined}
+              onDeleteCalendar={client ? async (cal: Calendar) => {
+                const ok = await confirmAction({
+                  title: tMgmt("delete"),
+                  message: tMgmt("confirm_delete", { name: cal.name }),
+                  variant: "destructive",
+                  confirmText: tMgmt("delete"),
+                });
+                if (!ok) return;
+                try {
+                  await removeCalendar(client, cal.id);
+                  toast.success(tMgmt("calendar_deleted"));
+                } catch {
+                  toast.error(tMgmt("error_delete"));
+                }
+              } : undefined}
+              onCreateCalendar={client ? () => setShowCreateCalendar(true) : undefined}
               onSubscribe={() => setShowSubscriptionModal(true)}
               onEditSubscription={(subId) => setEditingSubscription(subId)}
               client={client}
@@ -1165,11 +1211,12 @@ export default function CalendarPage() {
                 calendars={calendars}
                 defaultDate={defaultModalDate}
                 defaultEndDate={defaultModalEndDate}
+                defaultCalendarId={defaultCalendarIdForCreate}
                 onSave={handleSaveEvent}
                 onDelete={handleDeleteEvent}
                 onDuplicate={handleDuplicateEvent}
                 onRsvp={handleRsvp}
-                onClose={() => { setShowEventModal(false); setEditEvent(null); setPendingPreview(null); }}
+                onClose={() => { setShowEventModal(false); setEditEvent(null); setPendingPreview(null); setDefaultCalendarIdForCreate(undefined); }}
                 onPreviewChange={setPendingPreview}
                 currentUserEmails={currentUserEmails}
                 isMobile={false}
@@ -1261,11 +1308,12 @@ export default function CalendarPage() {
           calendars={calendars}
           defaultDate={defaultModalDate}
           defaultEndDate={defaultModalEndDate}
+          defaultCalendarId={defaultCalendarIdForCreate}
           onSave={handleSaveEvent}
           onDelete={handleDeleteEvent}
           onDuplicate={handleDuplicateEvent}
           onRsvp={handleRsvp}
-          onClose={() => { setShowEventModal(false); setEditEvent(null); }}
+          onClose={() => { setShowEventModal(false); setEditEvent(null); setDefaultCalendarIdForCreate(undefined); }}
           currentUserEmails={currentUserEmails}
           isMobile={true}
         />
@@ -1305,6 +1353,33 @@ export default function CalendarPage() {
         onSelect={handleScopeSelect}
         onClose={() => setPendingScopeAction(null)}
       />
+
+      <ConfirmDialog {...confirmDialogProps} />
+
+      {showCreateCalendar && client && (
+        <CreateCalendarModal
+          client={client}
+          onClose={() => setShowCreateCalendar(false)}
+        />
+      )}
+
+      {sharingCalendarId && client && (() => {
+        const cal = allCalendars.find((c) => c.id === sharingCalendarId);
+        if (!cal) return null;
+        return (
+          <ShareCollectionDialog
+            client={client}
+            kind="calendar"
+            collectionName={cal.name}
+            shareWith={cal.shareWith}
+            ownAccountId={client.getAccountId()}
+            onShare={async (principalId, rights) => {
+              await shareCalendar(client, cal.id, principalId, rights as CalendarRights | null);
+            }}
+            onClose={() => setSharingCalendarId(null)}
+          />
+        );
+      })()}
     </div>
   );
 }

app/[locale]/contacts/page.tsx

@@ -27,7 +27,8 @@ import { useSidebarApps } from "@/hooks/use-sidebar-apps";
 import { ResizeHandle } from "@/components/layout/resize-handle";
 import { useIsMobile } from "@/hooks/use-media-query";
 import { useRefreshGesture } from "@/hooks/use-refresh-gesture";
-import type { ContactCard, AddressBook } from "@/lib/jmap/types";
+import type { ContactCard, AddressBook, AddressBookRights } from "@/lib/jmap/types";
+import { ShareCollectionDialog } from "@/components/settings/share-collection-dialog";
 
 type View =
   | "list"
@@ -75,6 +76,8 @@ export default function ContactsPage() {
     bulkAddToGroup,
     moveContactToAddressBook,
     renameAddressBook,
+    removeAddressBook,
+    shareAddressBook,
     renameKeyword,
     importContacts,
   } = useContactStore();
@@ -83,6 +86,8 @@ export default function ContactsPage() {
   const [activeCategory, setActiveCategory] = useState<ContactCategory>("all");
   const [showImportDialog, setShowImportDialog] = useState(false);
   const [renamingAddressBook, setRenamingAddressBook] = useState<AddressBook | null>(null);
+  const [sharingAddressBookId, setSharingAddressBookId] = useState<string | null>(null);
+  const [defaultBookIdForCreate, setDefaultBookIdForCreate] = useState<string | undefined>(undefined);
   const [renamingKeyword, setRenamingKeyword] = useState<string | null>(null);
   const [selectedGroupId, setSelectedGroupId] = useState<string | null>(null);
   const hasFetched = useRef(false);
@@ -329,6 +334,7 @@ export default function ContactsPage() {
       addLocalContact(localContact);
       toast.success(t("toast.created"));
     }
+    setDefaultBookIdForCreate(undefined);
     setView("list");
   }, [supportsSync, client, createContact, addLocalContact, t]);
 
@@ -346,6 +352,7 @@ export default function ContactsPage() {
   }, [supportsSync, client, selectedContact, updateContact, updateLocalContact, t]);
 
   const handleCancel = () => {
+    setDefaultBookIdForCreate(undefined);
     if (view === "group-create" || view === "group-edit") {
       setView(selectedGroup ? "group-detail" : "list");
     } else if (view === "bulk-add-to-group") {
@@ -517,7 +524,7 @@ export default function ContactsPage() {
   const renderRightPanel = () => {
     switch (view) {
       case "create":
-        return <ContactForm addressBooks={addressBooks} allKeywords={allKeywords} onSave={handleSaveNew} onCancel={handleCancel} />;
+        return <ContactForm addressBooks={addressBooks} allKeywords={allKeywords} defaultAddressBookId={defaultBookIdForCreate} onSave={handleSaveNew} onCancel={handleCancel} />;
 
       case "edit":
         if (!selectedContact) return null;
@@ -690,6 +697,26 @@ export default function ContactsPage() {
                       onDropContacts={handleDropContacts}
                       onDropContactsToCategory={handleDropContactsToCategory}
                       onRenameAddressBook={client ? (book) => setRenamingAddressBook(book) : undefined}
+                      onShareAddressBook={client ? (book) => setSharingAddressBookId(book.id) : undefined}
+                      onCreateContactInBook={(book) => {
+                        setDefaultBookIdForCreate(book.id);
+                        handleCreateNew();
+                      }}
+                      onDeleteAddressBook={client ? async (book) => {
+                        const ok = await confirmDialog({
+                          title: t("address_books.delete"),
+                          message: t("address_books.confirm_delete", { name: book.name }),
+                          variant: "destructive",
+                          confirmText: t("address_books.delete"),
+                        });
+                        if (!ok) return;
+                        try {
+                          await removeAddressBook(client, book);
+                          toast.success(t("address_books.deleted"));
+                        } catch {
+                          toast.error(t("address_books.delete_failed"));
+                        }
+                      } : undefined}
                       onRenameKeyword={(kw) => setRenamingKeyword(kw)}
                     />
                   </div>
@@ -838,6 +865,23 @@ export default function ContactsPage() {
           </div>
         </div>
       )}
+      {sharingAddressBookId && client && (() => {
+        const book = addressBooks.find((b) => b.id === sharingAddressBookId);
+        if (!book) return null;
+        return (
+          <ShareCollectionDialog
+            client={client}
+            kind="addressBook"
+            collectionName={book.name}
+            shareWith={book.shareWith}
+            ownAccountId={client.getAccountId()}
+            onShare={async (principalId, rights) => {
+              await shareAddressBook(client, book, principalId, rights as AddressBookRights | null);
+            }}
+            onClose={() => setSharingAddressBookId(null)}
+          />
+        );
+      })()}
     </div>
   );
 }

app/[locale]/page.tsx

@@ -14,6 +14,7 @@ import { useAccountStore } from "@/stores/account-store";
 import type { UnifiedAccountClient } from "@/lib/unified-mailbox";
 import { KeyboardShortcutsModal } from "@/components/keyboard-shortcuts-modal";
 import { useEmailStore } from "@/stores/email-store";
+import { toast } from "@/stores/toast-store";
 import { useAuthStore, redirectToLogin } from "@/stores/auth-store";
 import { useSettingsStore } from "@/stores/settings-store";
 import { useContactStore } from "@/stores/contact-store";
@@ -23,6 +24,7 @@ import { useDeviceDetection } from "@/hooks/use-media-query";
 import { useKeyboardShortcuts } from "@/hooks/use-keyboard-shortcuts";
 import { useRefreshGesture } from "@/hooks/use-refresh-gesture";
 import { useConfirmDialog } from "@/hooks/use-confirm-dialog";
+import { usePromptDialog } from "@/hooks/use-prompt-dialog";
 import { useBrowserNavigation, type NavSnapshot } from "@/hooks/use-browser-navigation";
 import { debug } from "@/lib/debug";
 import { playNotificationSound } from "@/lib/notification-sound";
@@ -35,6 +37,7 @@ import {
   ComposerErrorFallback,
 } from "@/components/error";
 import { ConfirmDialog } from "@/components/ui/confirm-dialog";
+import { PromptDialog } from "@/components/ui/prompt-dialog";
 import { TotpReauthDialog } from "@/components/totp-reauth-dialog";
 import { DragDropProvider } from "@/contexts/drag-drop-context";
 import { isFilterEmpty, activeFilterCount } from "@/lib/jmap/search-utils";
@@ -67,6 +70,7 @@ export default function Home() {
   const [pendingDraft, setPendingDraft] = useState<ComposerDraftData | null>(null);
   const [composerSessionId, setComposerSessionId] = useState(0);
   const { dialogProps: confirmDialogProps, confirm: confirmDialog } = useConfirmDialog();
+  const { dialogProps: promptDialogProps, prompt: promptDialog } = usePromptDialog();
   const { showAppsModal, inlineApp, loadedApps, handleManageApps, handleInlineApp, closeInlineApp, closeAppsModal } = useSidebarApps();
   const [initialCheckDone, setInitialCheckDone] = useState(() => useAuthStore.getState().isAuthenticated && !!useAuthStore.getState().client);
   const [showShortcutsModal, setShowShortcutsModal] = useState(false);
@@ -162,6 +166,11 @@ export default function Home() {
     fetchUnifiedEmails: fetchUnifiedEmailsAction,
     refreshUnifiedCounts,
     exitUnifiedView,
+    emptyMailbox,
+    markMailboxAsRead,
+    createMailbox,
+    renameMailbox,
+    deleteMailbox,
   } = useEmailStore();
 
   const enableUnifiedMailbox = useSettingsStore((s) => s.enableUnifiedMailbox);
@@ -1097,6 +1106,197 @@ export default function Home() {
     }
   };
 
+  const tCtxMenu = t;
+
+  const handleMarkFolderRead = async (mailboxId: string) => {
+    if (!client) return;
+    try {
+      const count = await markMailboxAsRead(client, mailboxId);
+      await fetchMailboxes(client);
+      if (selectedMailbox === mailboxId) await fetchEmails(client, mailboxId);
+      if (count > 0) {
+        toast.success(tCtxMenu('mailbox_context_menu.toast_marked_read_count', { count }));
+      } else {
+        toast.success(tCtxMenu('mailbox_context_menu.toast_already_read'));
+      }
+    } catch {
+      toast.error(tCtxMenu('mailbox_context_menu.toast_error_mark_read'));
+    }
+  };
+
+  const handleMarkFolderTreeRead = async (mailboxId: string) => {
+    if (!client) return;
+    const collectIds = (rootId: string): string[] => {
+      const ids: string[] = [rootId];
+      const stack = [rootId];
+      while (stack.length > 0) {
+        const current = stack.pop()!;
+        for (const mb of mailboxes) {
+          if (mb.parentId === current) {
+            ids.push(mb.id);
+            stack.push(mb.id);
+          }
+        }
+      }
+      return ids;
+    };
+
+    try {
+      const ids = collectIds(mailboxId);
+      let total = 0;
+      for (const id of ids) {
+        total += await markMailboxAsRead(client, id);
+      }
+      await fetchMailboxes(client);
+      if (selectedMailbox && ids.includes(selectedMailbox)) await fetchEmails(client, selectedMailbox);
+      if (total > 0) {
+        toast.success(tCtxMenu('mailbox_context_menu.toast_marked_read_count', { count: total }));
+      } else {
+        toast.success(tCtxMenu('mailbox_context_menu.toast_already_read'));
+      }
+    } catch {
+      toast.error(tCtxMenu('mailbox_context_menu.toast_error_mark_read'));
+    }
+  };
+
+  const handleMarkAllFoldersRead = async () => {
+    if (!client) return;
+
+    const confirmed = await confirmDialog({
+      title: tCtxMenu('mailbox_context_menu.mark_all_confirm_title'),
+      message: tCtxMenu('mailbox_context_menu.mark_all_confirm_message'),
+      confirmText: tCtxMenu('mailbox_context_menu.mark_all_folders_read'),
+      variant: "default",
+    });
+    if (!confirmed) return;
+
+    try {
+      const total = await client.markAllAsRead();
+      await fetchMailboxes(client);
+      if (selectedMailbox) await fetchEmails(client, selectedMailbox);
+      if (total > 0) {
+        toast.success(tCtxMenu('mailbox_context_menu.toast_marked_read_count', { count: total }));
+      } else {
+        toast.success(tCtxMenu('mailbox_context_menu.toast_already_read'));
+      }
+    } catch {
+      toast.error(tCtxMenu('mailbox_context_menu.toast_error_mark_read'));
+    }
+  };
+
+  const handleEmptyFolderFromContextMenu = async (mailboxId: string) => {
+    if (!client) return;
+    const mailbox = mailboxes.find(mb => mb.id === mailboxId);
+    if (!mailbox) return;
+
+    const confirmed = await confirmDialog({
+      title: tCtxMenu('email_list.empty_folder.confirm_title'),
+      message: tCtxMenu('email_list.empty_folder.confirm_message'),
+      confirmText: tCtxMenu('email_list.empty_folder.confirm_button'),
+      variant: "destructive",
+    });
+    if (!confirmed) return;
+
+    try {
+      await emptyMailbox(client, mailboxId);
+      toast.success(tCtxMenu('mailbox_context_menu.toast_emptied'));
+    } catch {
+      toast.error(tCtxMenu('mailbox_context_menu.toast_error_empty'));
+    }
+  };
+
+  const handleCreateSubfolderFromContextMenu = async (parentId: string) => {
+    if (!client) return;
+    const name = await promptDialog({
+      title: tCtxMenu('mailbox_context_menu.new_subfolder'),
+      message: tCtxMenu('mailbox_context_menu.prompt_new_subfolder'),
+      placeholder: tCtxMenu('mailbox_context_menu.placeholder_folder_name'),
+      confirmText: tCtxMenu('mailbox_context_menu.create'),
+    });
+    if (!name) return;
+    try {
+      await createMailbox(client, name, parentId);
+      toast.success(tCtxMenu('mailbox_context_menu.toast_folder_created'));
+    } catch {
+      toast.error(tCtxMenu('mailbox_context_menu.toast_error_create'));
+    }
+  };
+
+  const handleCreateFolderFromContextMenu = async () => {
+    if (!client) return;
+    const name = await promptDialog({
+      title: tCtxMenu('mailbox_context_menu.new_folder'),
+      message: tCtxMenu('mailbox_context_menu.prompt_new_folder'),
+      placeholder: tCtxMenu('mailbox_context_menu.placeholder_folder_name'),
+      confirmText: tCtxMenu('mailbox_context_menu.create'),
+    });
+    if (!name) return;
+    try {
+      await createMailbox(client, name);
+      toast.success(tCtxMenu('mailbox_context_menu.toast_folder_created'));
+    } catch {
+      toast.error(tCtxMenu('mailbox_context_menu.toast_error_create'));
+    }
+  };
+
+  const handleRenameFolderFromContextMenu = async (mailboxId: string) => {
+    if (!client) return;
+    const mailbox = mailboxes.find(mb => mb.id === mailboxId);
+    if (!mailbox) return;
+    const name = await promptDialog({
+      title: tCtxMenu('mailbox_context_menu.rename'),
+      message: tCtxMenu('mailbox_context_menu.prompt_rename'),
+      placeholder: tCtxMenu('mailbox_context_menu.placeholder_folder_name'),
+      defaultValue: mailbox.name,
+      confirmText: tCtxMenu('mailbox_context_menu.rename_confirm'),
+    });
+    if (!name || name === mailbox.name) return;
+    try {
+      await renameMailbox(client, mailboxId, name);
+      toast.success(tCtxMenu('mailbox_context_menu.toast_folder_renamed'));
+    } catch {
+      toast.error(tCtxMenu('mailbox_context_menu.toast_error_rename'));
+    }
+  };
+
+  const handleDeleteFolderFromContextMenu = async (mailboxId: string) => {
+    if (!client) return;
+    const mailbox = mailboxes.find(mb => mb.id === mailboxId);
+    if (!mailbox) return;
+
+    const confirmed = await confirmDialog({
+      title: tCtxMenu('mailbox_context_menu.delete_confirm_title'),
+      message: tCtxMenu('mailbox_context_menu.delete_confirm_message', { name: mailbox.name }),
+      confirmText: tCtxMenu('mailbox_context_menu.delete_folder'),
+      variant: "destructive",
+    });
+    if (!confirmed) return;
+
+    try {
+      await deleteMailbox(client, mailboxId);
+      toast.success(tCtxMenu('mailbox_context_menu.toast_folder_deleted'));
+    } catch (err: unknown) {
+      const jmapType = (err as Error & { jmapType?: string })?.jmapType;
+      if (jmapType === 'mailboxHasChild') {
+        toast.error(tCtxMenu('mailbox_context_menu.toast_error_delete_has_children'));
+      } else if (jmapType === 'mailboxHasEmail') {
+        toast.error(tCtxMenu('mailbox_context_menu.toast_error_delete_has_email'));
+      } else {
+        toast.error(tCtxMenu('mailbox_context_menu.toast_error_delete'));
+      }
+    }
+  };
+
+  const handleRefreshMailboxes = async () => {
+    if (!client) return;
+    try {
+      await fetchMailboxes(client);
+      if (selectedMailbox) await fetchEmails(client, selectedMailbox);
+    } catch {
+      // silent
+    }
+  };
+
   const handleLogout = logout;
 
   const handleSearch = async (query: string) => {
@@ -1295,15 +1495,11 @@ export default function Home() {
   };
 
   // Handle back navigation from viewer on mobile.
-  // Delegate to the browser history stack so this button is equivalent to
-  // the OS back button / mouse back button - popstate then restores the
-  // previous snapshot via handleNavRestore. The viewer is only reachable
-  // from a state that pushed history, so back() always lands on an app entry.
+  // Reset to list state directly. We can't just call window.history.back()
+  // because the nav hook pushes a new entry for every email the user opens,
+  // so history.back() would pop to the previous email rather than the list.
+  // The OS / hardware back button is still wired through popstate → handleNavRestore.
   const handleMobileBack = () => {
-    if (typeof window !== 'undefined') {
-      window.history.back();
-      return;
-    }
     if (conversationThread) {
       setConversationThread(null);
       setConversationEmails([]);
@@ -1458,6 +1654,15 @@ export default function Home() {
               onMailboxSelect={handleMailboxSelect}
               onTagSelect={handleTagSelect}
               onUnreadFilterClick={handleUnreadFilterClick}
+              onMarkFolderRead={handleMarkFolderRead}
+              onMarkFolderTreeRead={handleMarkFolderTreeRead}
+              onMarkAllFoldersRead={handleMarkAllFoldersRead}
+              onEmptyFolder={handleEmptyFolderFromContextMenu}
+              onCreateSubfolder={handleCreateSubfolderFromContextMenu}
+              onCreateFolder={handleCreateFolderFromContextMenu}
+              onRenameFolder={handleRenameFolderFromContextMenu}
+              onDeleteFolder={handleDeleteFolderFromContextMenu}
+              onRefreshMailboxes={handleRefreshMailboxes}
               onCompose={() => {
                 setComposerMode('compose');
                 setShowComposer(true);
@@ -1934,12 +2139,12 @@ export default function Home() {
                     onReply={handleReply}
                     onReplyAll={handleReplyAll}
                     onForward={handleForward}
-                    onDelete={handleDelete}
+                    onDelete={() => handleDelete()}
                     onArchive={() => handleArchive()}
                     onToggleStar={handleToggleStar}
                     onSetColorTag={handleSetColorTag}
-                    onMarkAsSpam={handleMarkAsSpam}
-                    onUndoSpam={handleUndoSpam}
+                    onMarkAsSpam={() => handleMarkAsSpam()}
+                    onUndoSpam={() => handleUndoSpam()}
                     onMarkAsRead={async (emailId, read) => {
                       if (client) {
                         await markAsRead(client, emailId, read);
@@ -2009,6 +2214,7 @@ export default function Home() {
 
         <SidebarAppsModal isOpen={showAppsModal} onClose={closeAppsModal} />
         <ConfirmDialog {...confirmDialogProps} />
+        <PromptDialog {...promptDialogProps} />
         <TotpReauthDialog />
       </div>
     </DragDropProvider>

app/admin/auth/page.tsx

@@ -1,7 +1,7 @@
 'use client';
 
 import { useEffect, useState } from 'react';
-import { Save, Loader2, RotateCcw } from 'lucide-react';
+import { Save, Loader2, RotateCcw, Sparkles } from 'lucide-react';
 import { apiFetch } from '@/lib/browser-navigation';
 
 interface ConfigEntry {
@@ -69,6 +69,58 @@ export default function AdminAuthPage() {
     }
   }
 
+  const [setupRunning, setSetupRunning] = useState(false);
+  const [setupOpen, setSetupOpen] = useState(false);
+  const [setupOrigin, setSetupOrigin] = useState('');
+  const [setupIssuer, setSetupIssuer] = useState('');
+  const [setupOauthOnly, setSetupOauthOnly] = useState(false);
+
+  function openSetupDialog() {
+    if (typeof window === 'undefined') return;
+    const origin = window.location.origin;
+    const jmapUrl = (currentValue('jmapServerUrl') as string | undefined)?.replace(/\/+$/, '') || '';
+    setSetupOrigin(origin);
+    setSetupIssuer(jmapUrl || origin);
+    setSetupOauthOnly(currentValue('oauthOnly') === true);
+    setSetupOpen(true);
+  }
+
+  async function handleAutoSetup() {
+    setSetupRunning(true);
+    setMessage(null);
+    try {
+      const res = await apiFetch('/api/admin/oauth/setup', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({
+          origin: setupOrigin.trim().replace(/\/+$/, ''),
+          issuerUrl: setupIssuer.trim().replace(/\/+$/, ''),
+          oauthOnly: setupOauthOnly,
+        }),
+      });
+      const data = await res.json();
+      if (res.ok) {
+        setMessage({
+          type: 'success',
+          text: `OAuth client ${data.action} on Stalwart (${data.issuerUrl}). ${data.redirectUriCount} redirect URI(s) registered for ${data.origin}.`,
+        });
+        setEdits({});
+        setSetupOpen(false);
+        await fetchConfig();
+      } else {
+        const detail = data.detail ? ` (${typeof data.detail === 'string' ? data.detail : JSON.stringify(data.detail).slice(0, 200)})` : '';
+        setMessage({ type: 'error', text: (data.error || 'Setup failed') + detail });
+      }
+    } catch (err) {
+      setMessage({ type: 'error', text: err instanceof Error ? err.message : 'Setup failed' });
+    } finally {
+      setSetupRunning(false);
+    }
+  }
+
+  const setupOriginValid = /^https?:\/\/[^/]+$/.test(setupOrigin.trim().replace(/\/+$/, ''));
+  const setupIssuerValid = /^https?:\/\/[^/]+$/.test(setupIssuer.trim().replace(/\/+$/, ''));
+
   const hasEdits = Object.keys(edits).length > 0;
 
   if (loading) {
@@ -100,6 +152,119 @@ export default function AdminAuthPage() {
         </div>
       )}
 
+      {/* Auto-setup */}
+      <div className="rounded-lg border border-primary/30 bg-primary/5 p-4">
+        <div className="flex items-start justify-between gap-4">
+          <div className="min-w-0">
+            <div className="flex items-center gap-2">
+              <Sparkles className="w-4 h-4 text-primary shrink-0" />
+              <h3 className="text-sm font-medium text-foreground">Auto-configure OAuth (Stalwart)</h3>
+            </div>
+            <p className="text-xs text-muted-foreground mt-1">
+              Registers an OAuth client on the connected Stalwart server, generates a client secret, and saves the settings here.
+              Requires your Stalwart account to have admin permissions.
+            </p>
+          </div>
+          <button
+            onClick={openSetupDialog}
+            disabled={setupRunning}
+            className="shrink-0 inline-flex items-center gap-2 h-9 px-4 rounded-md bg-primary text-primary-foreground text-sm font-medium hover:bg-primary/90 disabled:opacity-50 transition-all shadow-sm"
+          >
+            {setupRunning ? <Loader2 className="w-4 h-4 animate-spin" /> : <Sparkles className="w-4 h-4" />}
+            {setupRunning ? 'Configuring…' : 'Set up automagically'}
+          </button>
+        </div>
+      </div>
+
+      {/* Auto-setup dialog */}
+      {setupOpen && (
+        <div
+          className="fixed inset-0 z-50 flex items-center justify-center bg-black/50 backdrop-blur-sm p-4"
+          role="dialog"
+          aria-modal="true"
+          aria-labelledby="oauth-setup-title"
+          onClick={(e) => { if (e.target === e.currentTarget && !setupRunning) setSetupOpen(false); }}
+        >
+          <div className="w-full max-w-md rounded-lg border border-border bg-background shadow-xl">
+            <div className="px-5 py-4 border-b border-border">
+              <h3 id="oauth-setup-title" className="text-base font-medium text-foreground">Auto-configure OAuth</h3>
+              <p className="text-xs text-muted-foreground mt-1">
+                Verify the URLs below before continuing. The webmail and Stalwart can live on different domains.
+              </p>
+            </div>
+            <div className="px-5 py-4 space-y-4">
+              <div>
+                <label htmlFor="setup-origin" className="block text-xs font-medium text-foreground mb-1">
+                  Webmail origin
+                </label>
+                <input
+                  id="setup-origin"
+                  type="url"
+                  value={setupOrigin}
+                  onChange={(e) => setSetupOrigin(e.target.value)}
+                  disabled={setupRunning}
+                  placeholder="https://webmail.example.com"
+                  className="w-full h-9 rounded-md border border-input bg-background px-2.5 text-sm text-foreground placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring"
+                />
+                <p className="text-[11px] text-muted-foreground mt-1">
+                  Used to register redirect URIs (one per locale: <code>{setupOrigin.trim().replace(/\/+$/, '') || 'https://…'}/&lt;locale&gt;/auth/callback</code>) on Stalwart.
+                </p>
+                {!setupOriginValid && setupOrigin.length > 0 && (
+                  <p className="text-[11px] text-destructive mt-1">Must be like https://host with no path.</p>
+                )}
+              </div>
+              <div>
+                <label htmlFor="setup-issuer" className="block text-xs font-medium text-foreground mb-1">
+                  Stalwart issuer URL
+                </label>
+                <input
+                  id="setup-issuer"
+                  type="url"
+                  value={setupIssuer}
+                  onChange={(e) => setSetupIssuer(e.target.value)}
+                  disabled={setupRunning}
+                  placeholder="https://mail.example.com"
+                  className="w-full h-9 rounded-md border border-input bg-background px-2.5 text-sm text-foreground placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring"
+                />
+                <p className="text-[11px] text-muted-foreground mt-1">
+                  Where Stalwart serves <code>/.well-known/oauth-authorization-server</code>. Saved as <code>OAUTH_ISSUER_URL</code>. Pre-filled from your JMAP server URL.
+                </p>
+                {!setupIssuerValid && setupIssuer.length > 0 && (
+                  <p className="text-[11px] text-destructive mt-1">Must be like https://host with no path.</p>
+                )}
+              </div>
+              <label className="inline-flex items-center gap-2 text-xs text-foreground select-none cursor-pointer">
+                <input
+                  type="checkbox"
+                  checked={setupOauthOnly}
+                  onChange={(e) => setSetupOauthOnly(e.target.checked)}
+                  className="h-3.5 w-3.5 rounded border-input"
+                  disabled={setupRunning}
+                />
+                Also enable “OAuth only” (hide password login)
+              </label>
+            </div>
+            <div className="px-5 py-3 border-t border-border flex items-center justify-end gap-2 bg-muted/30 rounded-b-lg">
+              <button
+                onClick={() => setSetupOpen(false)}
+                disabled={setupRunning}
+                className="h-9 px-3 rounded-md border border-input bg-background text-sm text-foreground hover:bg-muted disabled:opacity-50 transition-colors"
+              >
+                Cancel
+              </button>
+              <button
+                onClick={handleAutoSetup}
+                disabled={setupRunning || !setupOriginValid || !setupIssuerValid}
+                className="inline-flex items-center gap-2 h-9 px-4 rounded-md bg-primary text-primary-foreground text-sm font-medium hover:bg-primary/90 disabled:opacity-50 transition-all shadow-sm"
+              >
+                {setupRunning ? <Loader2 className="w-4 h-4 animate-spin" /> : <Sparkles className="w-4 h-4" />}
+                {setupRunning ? 'Configuring…' : 'Configure'}
+              </button>
+            </div>
+          </div>
+        </div>
+      )}
+
       {/* OAuth */}
       <Section title="OAuth / OpenID Connect">
         <Toggle label="OAuth Enabled" configKey="oauthEnabled" value={currentValue('oauthEnabled') as boolean} source={config.oauthEnabled?.source} onChange={handleChange} onRevert={handleRevert} />

app/admin/layout.tsx

@@ -65,6 +65,7 @@ export default function AdminLayout({ children }: { children: React.ReactNode })
   const router = useRouter();
   const pathname = usePathname();
   const [authenticated, setAuthenticated] = useState<boolean | null>(null);
+  const [authError, setAuthError] = useState<string | null>(null);
   const [isStalwartAdmin, setIsStalwartAdmin] = useState(false);
   const { appLogoLightUrl, appLogoDarkUrl, loginLogoLightUrl, loginLogoDarkUrl } = useConfig();
   const resolvedTheme = useThemeStore((s) => s.resolvedTheme);
@@ -73,54 +74,59 @@ export default function AdminLayout({ children }: { children: React.ReactNode })
     : (appLogoLightUrl || appLogoDarkUrl || loginLogoLightUrl);
 
   useEffect(() => {
-    if (pathname !== '/admin/login') {
-      checkAuth();
-    }
-  // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, [pathname]);
+    if (pathname === '/admin/login') return;
+    let cancelled = false;
 
-  function getJmapHeaders(): Record<string, string> {
-    return getActiveAccountSlotHeaders();
-  }
+    async function checkAuth() {
+      try {
+        const jmapHeaders = getActiveAccountSlotHeaders();
+        const res = await apiFetch('/api/admin/auth', { headers: jmapHeaders });
+        const data = await res.json();
+        if (cancelled) return;
 
-  async function checkAuth() {
-    try {
-      const jmapHeaders = getJmapHeaders();
-      const res = await apiFetch('/api/admin/auth', { headers: jmapHeaders });
-      const data = await res.json();
+        const stalwartAdmin = data.stalwartAdmin === true;
+        setIsStalwartAdmin(stalwartAdmin);
 
-      const stalwartAdmin = data.stalwartAdmin === true;
-      setIsStalwartAdmin(stalwartAdmin);
+        // If neither password-based admin nor Stalwart admin, redirect away
+        if (!data.enabled && !stalwartAdmin) {
+          router.replace('/');
+          return;
+        }
 
-      // If neither password-based admin nor Stalwart admin, redirect away
-      if (!data.enabled && !stalwartAdmin) {
-        router.replace('/');
-        return;
-      }
-
-      if (data.authenticated) {
-        setAuthenticated(true);
-        return;
-      }
-
-      // If Stalwart admin but not yet authenticated, auto-login
-      if (stalwartAdmin) {
-        const loginRes = await apiFetch('/api/admin/auth', {
-          method: 'POST',
-          headers: { 'Content-Type': 'application/json', ...jmapHeaders },
-          body: JSON.stringify({ stalwartAuth: true }),
-        });
-        if (loginRes.ok) {
+        if (data.authenticated) {
           setAuthenticated(true);
           return;
         }
-      }
 
-      router.replace('/admin/login');
-    } catch {
-      router.replace('/admin/login');
+        // If Stalwart admin but not yet authenticated, auto-login
+        if (stalwartAdmin) {
+          const loginRes = await apiFetch('/api/admin/auth', {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json', ...jmapHeaders },
+            body: JSON.stringify({ stalwartAuth: true }),
+          });
+          if (cancelled) return;
+          if (loginRes.ok) {
+            setAuthenticated(true);
+            return;
+          }
+          const body = await loginRes.json().catch(() => ({}));
+          setAuthError(body?.error || `Admin auto-login failed (HTTP ${loginRes.status})`);
+          setAuthenticated(false);
+          return;
+        }
+
+        router.replace('/admin/login');
+      } catch (err) {
+        if (cancelled) return;
+        setAuthError(err instanceof Error ? err.message : 'Network error during admin check');
+        setAuthenticated(false);
+      }
     }
-  }
+
+    checkAuth();
+    return () => { cancelled = true; };
+  }, [pathname, router]);
 
   async function handleLogout() {
     await apiFetch('/api/admin/auth', { method: 'DELETE' });
@@ -132,14 +138,6 @@ export default function AdminLayout({ children }: { children: React.ReactNode })
     return <>{children}</>;
   }
 
-  if (authenticated === null) {
-    return (
-      <div className="min-h-screen flex items-center justify-center bg-background">
-        <div className="animate-pulse text-muted-foreground text-sm">Loading...</div>
-      </div>
-    );
-  }
-
   return (
     <div className="min-h-screen flex bg-background">
       {/* Slim webmail nav rail */}
@@ -269,7 +267,18 @@ export default function AdminLayout({ children }: { children: React.ReactNode })
       {/* Main content */}
       <main className="flex-1 overflow-auto">
         <div className="max-w-4xl mx-auto p-6">
-          {children}
+          {authError ? (
+            <div className="rounded-lg border border-destructive/40 bg-destructive/10 p-4 text-sm text-destructive">
+              <p className="font-medium">Admin authentication failed</p>
+              <p className="mt-1 text-destructive/80">{authError}</p>
+            </div>
+          ) : authenticated === null ? (
+            <div className="py-12 text-center text-sm text-muted-foreground animate-pulse">
+              Loading admin panel…
+            </div>
+          ) : authenticated ? (
+            children
+          ) : null}
         </div>
       </main>
     </div>

app/api/admin/marketplace/route.ts

@@ -10,6 +10,10 @@ import {
   type ServerPlugin,
   type ServerTheme,
 } from '@/lib/admin/plugin-registry';
+import {
+  sanitizeFrameOrigins,
+  invalidateFrameOriginsCache,
+} from '@/lib/admin/csp-frame-origins';
 import JSZip from 'jszip';
 import { MAX_PLUGIN_SIZE, MAX_THEME_SIZE, ALL_PERMISSIONS, ALLOWED_PLUGIN_FILES } from '@/lib/plugin-types';
 import { sanitizeThemeCSS, validateThemeCSSSafety } from '@/lib/theme-loader';
@@ -226,6 +230,22 @@ export async function POST(request: NextRequest) {
         warnings.push(`Unknown permissions: ${unknownPerms.join(', ')}`);
       }
 
+      // Plugins may declare iframe origins they need for embedded content.
+      // Anything that doesn't pass strict origin validation is silently
+      // dropped — the plugin still installs, but those origins are not
+      // added to the host CSP.
+      const declaredFrameOrigins = sanitizeFrameOrigins(manifest.frameOrigins);
+      const droppedFrameOrigins = Array.isArray(manifest.frameOrigins)
+        ? (manifest.frameOrigins as unknown[]).filter(
+            (v) => typeof v !== 'string' || !declaredFrameOrigins.includes(v),
+          )
+        : [];
+      if (droppedFrameOrigins.length > 0) {
+        warnings.push(
+          `Ignored invalid frameOrigins: ${droppedFrameOrigins.join(', ')}`,
+        );
+      }
+
       const plugin: ServerPlugin = {
         id: (manifest.id as string) || slug,
         name: (manifest.name as string) || slug,
@@ -238,10 +258,14 @@ export async function POST(request: NextRequest) {
         enabled: true,
         installedAt: now,
         updatedAt: now,
+        ...(declaredFrameOrigins.length > 0
+          ? { frameOrigins: declaredFrameOrigins }
+          : {}),
       };
 
       await savePlugin(plugin, code);
-      await auditLog('marketplace.install_plugin', { id: plugin.id, name: plugin.name, version: plugin.version, slug }, ip);
+      invalidateFrameOriginsCache();
+      await auditLog('marketplace.install_plugin', { id: plugin.id, name: plugin.name, version: plugin.version, slug, frameOrigins: declaredFrameOrigins }, ip);
 
       return NextResponse.json({ success: true, plugin, warnings });
     }

app/api/admin/oauth/setup/route.ts

@@ -0,0 +1,253 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { randomBytes } from 'node:crypto';
+import { requireAdminAuth, getClientIP } from '@/lib/admin/session';
+import { getStalwartCredentials } from '@/lib/stalwart/credentials';
+import { configManager } from '@/lib/admin/config-manager';
+import { auditLog } from '@/lib/admin/audit';
+import { logger } from '@/lib/logger';
+import { locales as ALL_LOCALES } from '@/i18n/routing';
+
+const CLIENT_ID = 'bulwark-webmail';
+const CLIENT_DESCRIPTION = 'Bulwark Webmail (auto-configured)';
+const JMAP_TIMEOUT_MS = 10_000;
+
+interface JmapMethodCall {
+  using: string[];
+  methodCalls: Array<[string, Record<string, unknown>, string]>;
+}
+
+interface JmapMethodResponse {
+  methodResponses?: Array<[string, Record<string, unknown>, string]>;
+}
+
+async function fetchWithTimeout(url: string, init: Parameters<typeof fetch>[1]): Promise<Response> {
+  const controller = new AbortController();
+  const timer = setTimeout(() => controller.abort(), JMAP_TIMEOUT_MS);
+  try {
+    return await fetch(url, { ...init, signal: controller.signal });
+  } finally {
+    clearTimeout(timer);
+  }
+}
+
+async function jmapCall(
+  serverUrl: string,
+  authHeader: string,
+  body: JmapMethodCall,
+): Promise<JmapMethodResponse> {
+  const res = await fetchWithTimeout(`${serverUrl}/jmap/`, {
+    method: 'POST',
+    headers: { 'Authorization': authHeader, 'Content-Type': 'application/json' },
+    body: JSON.stringify(body),
+  });
+  if (!res.ok) {
+    const text = await res.text().catch(() => '');
+    throw new Error(`JMAP HTTP ${res.status} ${text.slice(0, 200)}`);
+  }
+  return res.json() as Promise<JmapMethodResponse>;
+}
+
+async function getStalwartAccountId(
+  serverUrl: string,
+  authHeader: string,
+): Promise<string | null> {
+  const res = await fetchWithTimeout(`${serverUrl}/.well-known/jmap`, {
+    method: 'GET',
+    headers: { 'Authorization': authHeader },
+  });
+  if (!res.ok) return null;
+  const session = await res.json() as { primaryAccounts?: Record<string, string> };
+  return session.primaryAccounts?.['urn:stalwart:jmap']
+    ?? session.primaryAccounts?.['urn:ietf:params:jmap:mail']
+    ?? Object.values(session.primaryAccounts ?? {})[0]
+    ?? null;
+}
+
+function buildRedirectUris(origin: string, localeList: readonly string[]): Record<string, true> {
+  const out: Record<string, true> = {};
+  for (const loc of localeList) {
+    out[`${origin}/${loc}/auth/callback`] = true;
+  }
+  return out;
+}
+
+interface SetupRequestBody {
+  origin?: string;
+  issuerUrl?: string;
+  locales?: string[];
+  oauthOnly?: boolean;
+}
+
+function isValidOriginUrl(value: string): boolean {
+  return /^https?:\/\/[^/]+$/.test(value);
+}
+
+export async function POST(request: NextRequest) {
+  try {
+    const auth = await requireAdminAuth();
+    if ('error' in auth) return auth.error;
+
+    const ip = getClientIP(request);
+    const creds = await getStalwartCredentials(request);
+    if (!creds) {
+      return NextResponse.json(
+        { error: 'No Stalwart session available. Sign in to your mail account in another tab and retry.' },
+        { status: 400 },
+      );
+    }
+
+    const body = await request.json() as SetupRequestBody;
+    const origin = (body.origin ?? '').trim().replace(/\/+$/, '');
+    if (!isValidOriginUrl(origin)) {
+      return NextResponse.json(
+        { error: 'Webmail origin must be a URL like "https://webmail.example.com" with no path.' },
+        { status: 400 },
+      );
+    }
+    const issuerUrl = (body.issuerUrl ?? origin).trim().replace(/\/+$/, '');
+    if (!isValidOriginUrl(issuerUrl)) {
+      return NextResponse.json(
+        { error: 'Stalwart issuer URL must be a URL like "https://mail.example.com" with no path.' },
+        { status: 400 },
+      );
+    }
+    const localeList = Array.isArray(body.locales) && body.locales.length > 0
+      ? body.locales.filter(l => typeof l === 'string' && /^[a-z]{2,5}(-[A-Za-z0-9]+)*$/.test(l))
+      : Array.from(ALL_LOCALES);
+    if (localeList.length === 0) {
+      return NextResponse.json({ error: 'No valid locales supplied.' }, { status: 400 });
+    }
+    const oauthOnly = body.oauthOnly === true;
+
+    const accountId = await getStalwartAccountId(creds.serverUrl, creds.authHeader);
+    if (!accountId) {
+      return NextResponse.json(
+        { error: 'Could not resolve Stalwart account from JMAP session.' },
+        { status: 502 },
+      );
+    }
+
+    const queryRes = await jmapCall(creds.serverUrl, creds.authHeader, {
+      using: ['urn:ietf:params:jmap:core', 'urn:stalwart:jmap'],
+      methodCalls: [[
+        'x:OAuthClient/query',
+        { accountId, filter: { clientId: CLIENT_ID } },
+        '0',
+      ]],
+    });
+
+    const queryEntry = queryRes.methodResponses?.[0];
+    if (!queryEntry || queryEntry[0] === 'error') {
+      return NextResponse.json({
+        error: 'Stalwart denied OAuthClient/query — your Stalwart account likely lacks admin permissions.',
+        detail: queryEntry?.[1],
+      }, { status: 403 });
+    }
+    const existingIds = (queryEntry[1].ids as string[] | undefined) ?? [];
+
+    const secret = randomBytes(32).toString('base64url');
+    const redirectUris = buildRedirectUris(origin, localeList);
+
+    let setArgs: Record<string, unknown>;
+    let action: 'created' | 'updated';
+    if (existingIds.length > 0) {
+      const targetId = existingIds[0];
+      action = 'updated';
+      setArgs = {
+        accountId,
+        update: {
+          [targetId]: {
+            secret,
+            redirectUris,
+            description: CLIENT_DESCRIPTION,
+          },
+        },
+      };
+    } else {
+      action = 'created';
+      setArgs = {
+        accountId,
+        create: {
+          new: {
+            clientId: CLIENT_ID,
+            description: CLIENT_DESCRIPTION,
+            secret,
+            redirectUris,
+            contacts: { [creds.username]: true },
+          },
+        },
+      };
+    }
+
+    const setRes = await jmapCall(creds.serverUrl, creds.authHeader, {
+      using: ['urn:ietf:params:jmap:core', 'urn:stalwart:jmap'],
+      methodCalls: [['x:OAuthClient/set', setArgs, '0']],
+    });
+
+    const setEntry = setRes.methodResponses?.[0];
+    if (!setEntry || setEntry[0] === 'error') {
+      return NextResponse.json({
+        error: 'Stalwart denied OAuthClient/set — admin permissions required.',
+        detail: setEntry?.[1],
+      }, { status: 403 });
+    }
+    const setBody = setEntry[1] as {
+      notCreated?: Record<string, unknown>;
+      notUpdated?: Record<string, unknown>;
+    };
+    if (setBody.notCreated && Object.keys(setBody.notCreated).length > 0) {
+      return NextResponse.json(
+        { error: 'Stalwart refused to create the OAuth client.', detail: setBody.notCreated },
+        { status: 502 },
+      );
+    }
+    if (setBody.notUpdated && Object.keys(setBody.notUpdated).length > 0) {
+      return NextResponse.json(
+        { error: 'Stalwart refused to update the OAuth client.', detail: setBody.notUpdated },
+        { status: 502 },
+      );
+    }
+
+    await configManager.ensureLoaded();
+    const updates: Record<string, unknown> = {
+      oauthEnabled: true,
+      oauthClientId: CLIENT_ID,
+      oauthClientSecret: secret,
+      oauthIssuerUrl: issuerUrl,
+    };
+    if (oauthOnly) updates.oauthOnly = true;
+    await configManager.setAdminConfig(updates);
+
+    await auditLog('admin.oauth_setup', {
+      action,
+      clientId: CLIENT_ID,
+      origin,
+      issuer: issuerUrl,
+      redirectUriCount: localeList.length,
+      oauthOnly,
+    }, ip);
+
+    logger.info('Admin OAuth setup', {
+      action,
+      clientId: CLIENT_ID,
+      origin,
+      issuer: issuerUrl,
+      locales: localeList.length,
+    });
+
+    return NextResponse.json({
+      ok: true,
+      action,
+      clientId: CLIENT_ID,
+      origin,
+      issuerUrl,
+      redirectUriCount: localeList.length,
+    });
+  } catch (error) {
+    logger.error('Admin OAuth setup error', { error: error instanceof Error ? error.message : 'Unknown error' });
+    return NextResponse.json(
+      { error: error instanceof Error ? error.message : 'Internal server error' },
+      { status: 500 },
+    );
+  }
+}

app/api/admin/plugins/route.ts

@@ -8,6 +8,10 @@ import {
   deletePlugin as removePlugin,
   type ServerPlugin,
 } from '@/lib/admin/plugin-registry';
+import {
+  sanitizeFrameOrigins,
+  invalidateFrameOriginsCache,
+} from '@/lib/admin/csp-frame-origins';
 
 // Server-side extraction using the same validation logic
 // ZIP parsing needs to happen on the server for admin-uploaded plugins
@@ -152,6 +156,8 @@ export async function POST(request: NextRequest) {
       );
     }
 
+    const declaredFrameOrigins = sanitizeFrameOrigins(manifest.frameOrigins);
+
     const now = new Date().toISOString();
     const plugin: ServerPlugin = {
       id: manifest.id as string,
@@ -166,12 +172,16 @@ export async function POST(request: NextRequest) {
       ...(manifest.configSchema && typeof manifest.configSchema === 'object'
         ? { configSchema: manifest.configSchema as ServerPlugin['configSchema'] }
         : {}),
+      ...(declaredFrameOrigins.length > 0
+        ? { frameOrigins: declaredFrameOrigins }
+        : {}),
       installedAt: now,
       updatedAt: now,
     };
 
     await savePlugin(plugin, code);
-    await auditLog('plugin.install', { id: plugin.id, name: plugin.name, version: plugin.version }, ip);
+    invalidateFrameOriginsCache();
+    await auditLog('plugin.install', { id: plugin.id, name: plugin.name, version: plugin.version, frameOrigins: declaredFrameOrigins }, ip);
 
     return NextResponse.json({ plugin });
   } catch (error) {
@@ -209,6 +219,11 @@ export async function PATCH(request: NextRequest) {
       return NextResponse.json({ error: 'Plugin not found' }, { status: 404 });
     }
 
+    // Enable/disable changes the set of plugins contributing frame origins.
+    if (typeof updates.enabled === 'boolean' || typeof updates.forceEnabled === 'boolean') {
+      invalidateFrameOriginsCache();
+    }
+
     await auditLog('plugin.update', { id, ...updates }, ip);
     return NextResponse.json({ plugin: updated });
   } catch (error) {
@@ -238,6 +253,7 @@ export async function DELETE(request: NextRequest) {
       return NextResponse.json({ error: 'Plugin not found' }, { status: 404 });
     }
 
+    invalidateFrameOriginsCache();
     await auditLog('plugin.delete', { id }, ip);
     return NextResponse.json({ success: true });
   } catch (error) {

app/api/auth/session/route.ts

@@ -9,6 +9,7 @@ import {
   clearStalwartAuthContextInStore,
   setStalwartAuthContextInStore,
 } from '@/lib/stalwart/auth-context';
+import { configManager } from '@/lib/admin/config-manager';
 
 const COOKIE_OPTIONS = {
   ...getCookieOptions(),
@@ -25,7 +26,9 @@ function getSlot(request: NextRequest): number {
 
 export async function POST(request: NextRequest) {
   try {
-    if (process.env.OAUTH_ENABLED === 'true' && process.env.OAUTH_ONLY === 'true') {
+    const oauthEnabled = configManager.get<boolean>('oauthEnabled', false);
+    const oauthOnly = configManager.get<boolean>('oauthOnly', false);
+    if (oauthEnabled && oauthOnly) {
       return NextResponse.json({ error: 'Basic authentication is disabled' }, { status: 403 });
     }
 

app/api/auth/totp-token-exchange/route.ts

@@ -5,6 +5,7 @@ import { discoverOAuth } from '@/lib/oauth/discovery';
 import { refreshTokenCookieName } from '@/lib/oauth/tokens';
 import { getCookieOptions } from '@/lib/oauth/cookie-config';
 import { readFileEnv } from '@/lib/read-file-env';
+import { configManager } from '@/lib/admin/config-manager';
 
 /**
  * Exchange basic auth credentials (with TOTP appended) for OAuth tokens.
@@ -113,8 +114,8 @@ async function attemptAllStrategies(
 ): Promise<NextResponse> {
   logger.info('TOTP token exchange: found token endpoint', { tokenEndpoint });
 
-  const clientId = process.env.OAUTH_CLIENT_ID;
-  const clientSecret = process.env.OAUTH_CLIENT_SECRET || readFileEnv(process.env.OAUTH_CLIENT_SECRET_FILE);
+  const clientId = configManager.get<string>('oauthClientId', '') || process.env.OAUTH_CLIENT_ID;
+  const clientSecret = configManager.get<string>('oauthClientSecret', '') || process.env.OAUTH_CLIENT_SECRET || readFileEnv(process.env.OAUTH_CLIENT_SECRET_FILE);
   const basicAuth = `Basic ${Buffer.from(`${username}:${password}`).toString('base64')}`;
   const attempts: Array<{ strategy: string; error: string }> = [];
 

components/calendar/calendar-sidebar-panel.tsx

@@ -1,8 +1,8 @@
 "use client";
 
-import { useState, useRef, useEffect, useMemo } from "react";
+import { useMemo, useState } from "react";
 import { useTranslations } from "next-intl";
-import { Globe, ListTodo, Pencil, RefreshCw, Share2, Trash2, Cake } from "lucide-react";
+import { Globe, ListTodo, Pencil, RefreshCw, Share2, Trash2, Cake, Users, Plus, Eraser, Palette } from "lucide-react";
 import { cn, formatDateTime } from "@/lib/utils";
 import type { Calendar } from "@/lib/jmap/types";
 import { CalendarColorPicker } from "@/components/settings/calendar-management-settings";
@@ -11,6 +11,8 @@ import { useSettingsStore } from "@/stores/settings-store";
 import { useTaskStore } from "@/stores/task-store";
 import { BIRTHDAY_CALENDAR_ID } from "@/lib/birthday-calendar";
 import { toast } from "@/stores/toast-store";
+import { ContextMenu, ContextMenuItem, ContextMenuSeparator, ContextMenuSubMenu } from "@/components/ui/context-menu";
+import { useContextMenu } from "@/hooks/use-context-menu";
 import type { IJMAPClient } from '@/lib/jmap/client-interface';
 
 interface CalendarSidebarPanelProps {
@@ -18,6 +20,11 @@ interface CalendarSidebarPanelProps {
   selectedCalendarIds: string[];
   onToggleVisibility: (id: string) => void;
   onColorChange?: (calendarId: string, color: string) => void;
+  onShareCalendar?: (calendar: Calendar) => void;
+  onCreateEvent?: (calendar: Calendar) => void;
+  onClearCalendar?: (calendar: Calendar) => void;
+  onDeleteCalendar?: (calendar: Calendar) => void;
+  onCreateCalendar?: () => void;
   onSubscribe?: () => void;
   onEditSubscription?: (subscriptionId: string) => void;
   client?: IJMAPClient | null;
@@ -28,12 +35,18 @@ export function CalendarSidebarPanel({
   selectedCalendarIds,
   onToggleVisibility,
   onColorChange,
+  onShareCalendar,
+  onCreateEvent,
+  onClearCalendar,
+  onDeleteCalendar,
+  onCreateCalendar,
   onSubscribe,
   onEditSubscription,
   client,
 }: CalendarSidebarPanelProps) {
   const t = useTranslations("calendar");
   const tSub = useTranslations("calendar.subscription");
+  const tMgmt = useTranslations("calendar.management");
   const isSubscriptionCalendar = useCalendarStore((s) => s.isSubscriptionCalendar);
   const icalSubscriptions = useCalendarStore((s) => s.icalSubscriptions);
   const refreshICalSubscription = useCalendarStore((s) => s.refreshICalSubscription);
@@ -49,11 +62,8 @@ export function CalendarSidebarPanel({
     return tasks.filter(t => t.progress !== 'completed' && t.progress !== 'cancelled' && t.due && new Date(t.due) < now).length;
   }, [tasks]);
 
-  const [colorPickerId, setColorPickerId] = useState<string | null>(null);
-  const [contextMenuCalId, setContextMenuCalId] = useState<string | null>(null);
+  const { contextMenu, openContextMenu, closeContextMenu, menuRef } = useContextMenu<Calendar>();
   const [refreshingSubId, setRefreshingSubId] = useState<string | null>(null);
-  const colorPickerRef = useRef<HTMLDivElement>(null);
-  const contextMenuRef = useRef<HTMLDivElement>(null);
 
   const personalCalendars = useMemo(() => calendars.filter(c => !c.isShared), [calendars]);
   const sharedAccountGroups = useMemo(() => {
@@ -69,30 +79,6 @@ export function CalendarSidebarPanel({
     return Array.from(groups.values());
   }, [calendars]);
 
-  useEffect(() => {
-    if (!colorPickerId && !contextMenuCalId) return;
-    const handleClick = (e: MouseEvent) => {
-      if (colorPickerRef.current && !colorPickerRef.current.contains(e.target as Node)) {
-        setColorPickerId(null);
-      }
-      if (contextMenuRef.current && !contextMenuRef.current.contains(e.target as Node)) {
-        setContextMenuCalId(null);
-      }
-    };
-    const handleKey = (e: KeyboardEvent) => {
-      if (e.key === 'Escape') {
-        setColorPickerId(null);
-        setContextMenuCalId(null);
-      }
-    };
-    document.addEventListener('mousedown', handleClick);
-    document.addEventListener('keydown', handleKey);
-    return () => {
-      document.removeEventListener('mousedown', handleClick);
-      document.removeEventListener('keydown', handleKey);
-    };
-  }, [colorPickerId, contextMenuCalId]);
-
   const getSubscriptionForCalendar = (calendarId: string) => {
     return icalSubscriptions.find(s => s.calendarId === calendarId);
   };
@@ -100,7 +86,6 @@ export function CalendarSidebarPanel({
   const handleRefreshSubscription = async (subId: string) => {
     if (!client) return;
     setRefreshingSubId(subId);
-    setContextMenuCalId(null);
     try {
       await refreshICalSubscription(client, subId);
       toast.success(tSub('refresh_success'));
@@ -113,7 +98,6 @@ export function CalendarSidebarPanel({
 
   const handleUnsubscribe = async (subId: string) => {
     if (!client) return;
-    setContextMenuCalId(null);
     try {
       await removeICalSubscription(client, subId);
       toast.success(tSub('deleted'));
@@ -127,21 +111,13 @@ export function CalendarSidebarPanel({
   const renderCalendarItem = (cal: Calendar) => {
     const isVisible = selectedCalendarIds.includes(cal.id);
     const color = cal.color || "#3b82f6";
+    const hasMenu = isSubscriptionCalendar(cal.id) ? !!client : true;
 
     return (
       <div key={cal.id} className="relative">
         <button
           onClick={() => onToggleVisibility(cal.id)}
-          onContextMenu={(e) => {
-            e.preventDefault();
-            if (isSubscriptionCalendar(cal.id) && client) {
-              setContextMenuCalId(contextMenuCalId === cal.id ? null : cal.id);
-              setColorPickerId(null);
-            } else if (onColorChange) {
-              setColorPickerId(colorPickerId === cal.id ? null : cal.id);
-              setContextMenuCalId(null);
-            }
-          }}
+          onContextMenu={hasMenu ? (e) => openContextMenu(e, cal) : undefined}
           className={cn(
             "flex items-center gap-2 w-full px-1.5 py-1 rounded-md text-sm transition-colors duration-150",
             "hover:bg-muted"
@@ -169,70 +145,101 @@ export function CalendarSidebarPanel({
             <Cake className="w-3 h-3 text-muted-foreground flex-shrink-0" />
           )}
         </button>
-
-        {/* Subscription context menu on right-click */}
-        {contextMenuCalId === cal.id && isSubscriptionCalendar(cal.id) && client && (() => {
-          const sub = getSubscriptionForCalendar(cal.id);
-          if (!sub) return null;
-          return (
-            <div
-              ref={contextMenuRef}
-              className="absolute left-6 top-full mt-1 z-50 bg-background border border-border rounded-lg shadow-lg py-1 w-48"
-            >
-              <button
-                onClick={() => {
-                  setContextMenuCalId(null);
-                  onEditSubscription?.(sub.id);
-                }}
-                className="flex items-center gap-2 w-full px-3 py-1.5 text-sm hover:bg-muted transition-colors"
-              >
-                <Pencil className="w-3.5 h-3.5" />
-                {tSub('edit')}
-              </button>
-              <button
-                onClick={() => handleRefreshSubscription(sub.id)}
-                className="flex items-center gap-2 w-full px-3 py-1.5 text-sm hover:bg-muted transition-colors"
-              >
-                <RefreshCw className="w-3.5 h-3.5" />
-                {tSub('refresh')}
-              </button>
-              <button
-                onClick={() => handleUnsubscribe(sub.id)}
-                className="flex items-center gap-2 w-full px-3 py-1.5 text-sm text-destructive hover:bg-destructive/10 transition-colors"
-              >
-                <Trash2 className="w-3.5 h-3.5" />
-                {tSub('unsubscribe')}
-              </button>
-              {sub.lastRefreshed && (
-                <div className="px-3 py-1.5 text-xs text-muted-foreground border-t border-border mt-1 pt-1">
-                  {tSub('last_refreshed', { time: formatDateTime(sub.lastRefreshed, timeFormat, { month: 'short', day: 'numeric', year: 'numeric' }) })}
-                </div>
-              )}
-            </div>
-          );
-        })()}
-
-        {/* Color picker popover on right-click */}
-        {colorPickerId === cal.id && onColorChange && (
-          <div
-            ref={colorPickerRef}
-            className="absolute left-6 top-full mt-1 z-50 bg-background border border-border rounded-lg shadow-lg p-3 w-56"
-          >
-            <p className="text-xs font-medium text-muted-foreground mb-2">{t("management.change_color")}</p>
-            <CalendarColorPicker
-              value={color}
-              onChange={(c) => {
-                onColorChange(cal.id, c);
-                setColorPickerId(null);
-              }}
-              allowCustom
-            />
-          </div>
-        )}
       </div>
     );
   };
 
+  const renderCalendarMenu = () => {
+    const cal = contextMenu.data;
+    if (!cal) return null;
+
+    if (isSubscriptionCalendar(cal.id)) {
+      const sub = getSubscriptionForCalendar(cal.id);
+      if (!sub || !client) return null;
+      return (
+        <ContextMenu ref={menuRef} isOpen={contextMenu.isOpen} position={contextMenu.position} onClose={closeContextMenu}>
+          <ContextMenuItem
+            icon={Pencil}
+            label={tSub('edit')}
+            onClick={() => { closeContextMenu(); onEditSubscription?.(sub.id); }}
+          />
+          <ContextMenuItem
+            icon={RefreshCw}
+            label={tSub('refresh')}
+            onClick={() => { closeContextMenu(); handleRefreshSubscription(sub.id); }}
+          />
+          <ContextMenuSeparator />
+          <ContextMenuItem
+            icon={Trash2}
+            label={tSub('unsubscribe')}
+            onClick={() => { closeContextMenu(); handleUnsubscribe(sub.id); }}
+            destructive
+          />
+          {sub.lastRefreshed && (
+            <div className="px-3 py-1.5 text-xs text-muted-foreground border-t border-border mt-1 pt-1">
+              {tSub('last_refreshed', { time: formatDateTime(sub.lastRefreshed, timeFormat, { month: 'short', day: 'numeric', year: 'numeric' }) })}
+            </div>
+          )}
+        </ContextMenu>
+      );
+    }
+
+    const isBirthday = cal.id === BIRTHDAY_CALENDAR_ID;
+    const canCreate = onCreateEvent && !isBirthday && cal.myRights?.mayWriteOwn !== false;
+    const canShare = onShareCalendar && cal.myRights?.mayShare && !cal.isShared;
+    const canChangeColor = !!onColorChange;
+    const canClear = onClearCalendar && !isBirthday && cal.myRights?.mayDelete !== false;
+    const canDelete = onDeleteCalendar && !isBirthday && !cal.isDefault && !cal.isShared;
+    const showSeparator = (canCreate || canShare || canChangeColor) && (canClear || canDelete);
+    const color = cal.color || "#3b82f6";
+
+    return (
+      <ContextMenu ref={menuRef} isOpen={contextMenu.isOpen} position={contextMenu.position} onClose={closeContextMenu}>
+        {canCreate && (
+          <ContextMenuItem
+            icon={Plus}
+            label={tMgmt('new_event_in_calendar')}
+            onClick={() => { closeContextMenu(); onCreateEvent(cal); }}
+          />
+        )}
+        {canShare && (
+          <ContextMenuItem
+            icon={Users}
+            label={tMgmt('share')}
+            onClick={() => { closeContextMenu(); onShareCalendar(cal); }}
+          />
+        )}
+        {canChangeColor && (
+          <ContextMenuSubMenu icon={Palette} label={tMgmt('change_color')}>
+            <div className="px-2 py-1.5 w-[200px]">
+              <CalendarColorPicker
+                value={color}
+                onChange={(c) => { onColorChange(cal.id, c); closeContextMenu(); }}
+                allowCustom
+              />
+            </div>
+          </ContextMenuSubMenu>
+        )}
+        {showSeparator && <ContextMenuSeparator />}
+        {canClear && (
+          <ContextMenuItem
+            icon={Eraser}
+            label={tMgmt('clear_events')}
+            onClick={() => { closeContextMenu(); onClearCalendar(cal); }}
+          />
+        )}
+        {canDelete && (
+          <ContextMenuItem
+            icon={Trash2}
+            label={tMgmt('delete')}
+            onClick={() => { closeContextMenu(); onDeleteCalendar(cal); }}
+            destructive
+          />
+        )}
+      </ContextMenu>
+    );
+  };
+
   return (
     <div className="mt-4">
       {enableCalendarTasks && (
@@ -250,9 +257,22 @@ export function CalendarSidebarPanel({
           )}
         </button>
       )}
-      <h3 className="text-xs font-medium text-muted-foreground uppercase tracking-wider mb-2 px-1">
-        {t("my_calendars")}
-      </h3>
+      <div className="flex items-center justify-between mb-2 px-1 group">
+        {onCreateCalendar ? (
+          <button
+            onClick={onCreateCalendar}
+            className="text-xs font-medium text-muted-foreground uppercase tracking-wider hover:text-foreground transition-colors flex items-center gap-1.5"
+            title={tMgmt('add_calendar')}
+          >
+            {t('my_calendars')}
+            <Plus className="w-3 h-3 opacity-0 group-hover:opacity-100 transition-opacity" />
+          </button>
+        ) : (
+          <h3 className="text-xs font-medium text-muted-foreground uppercase tracking-wider">
+            {t('my_calendars')}
+          </h3>
+        )}
+      </div>
       <div className="space-y-0.5">
         {personalCalendars.map(renderCalendarItem)}
       </div>
@@ -268,6 +288,8 @@ export function CalendarSidebarPanel({
           </div>
         </div>
       ))}
+
+      {renderCalendarMenu()}
     </div>
   );
 }

components/calendar/calendar-toolbar.tsx

@@ -260,6 +260,9 @@ export function CalendarToolbar({
       {/* ── DESKTOP TOOLBAR ── */}
       {!isMobile && (
         <div className="flex items-center gap-1">
+          <Button variant="outline" size="sm" onClick={onToday} className="h-8 mr-1">
+            {t("views.today")}
+          </Button>
           <Button variant="ghost" size="icon" className="h-8 w-8" onClick={onPrev} aria-label={t("nav_prev")}>
             <ChevronLeft className="w-4 h-4" />
           </Button>
@@ -279,14 +282,14 @@ export function CalendarToolbar({
       <div className="flex-1" />
 
       {!isMobile && (
-        <div className="flex border border-border rounded-md overflow-hidden">
+        <div className="flex h-8 border border-border rounded-md overflow-hidden">
           {views.map((v) => (
             <button
               key={v}
               onClick={() => onViewModeChange(v)}
               title={t(`views.${v}_hint`)}
               className={cn(
-                "px-3 py-1.5 text-xs font-medium transition-colors",
+                "inline-flex items-center px-3 text-xs font-medium transition-colors",
                 v === viewMode
                   ? "bg-primary text-primary-foreground"
                   : "hover:bg-muted text-muted-foreground"
@@ -300,7 +303,7 @@ export function CalendarToolbar({
 
       {(onImport || onSubscribe) && !isMobile && (
         <div className="relative" ref={importDropdownRef}>
-          <Button variant="outline" size="sm" onClick={() => setShowImportDropdown((v) => !v)}>
+          <Button variant="outline" size="sm" className="h-8" onClick={() => setShowImportDropdown((v) => !v)}>
             <Upload className="w-4 h-4 mr-1" />
             {t("import.title")}
             <ChevronDown className="w-3 h-3 ml-1" />
@@ -331,7 +334,7 @@ export function CalendarToolbar({
       )}
 
       {!isMobile && (
-        <Button size="sm" onClick={onCreateEvent} data-tour="create-event-button">
+        <Button size="sm" className="h-8" onClick={onCreateEvent} data-tour="create-event-button">
           <Plus className="w-4 h-4 mr-1" />
           {t("events.create")}
         </Button>

components/calendar/create-calendar-modal.tsx

@@ -0,0 +1,151 @@
+"use client";
+
+import { useCallback, useEffect, useRef, useState } from "react";
+import { useTranslations } from "next-intl";
+import { Button } from "@/components/ui/button";
+import { X, Loader2, Calendar as CalendarIcon } from "lucide-react";
+import type { IJMAPClient } from "@/lib/jmap/client-interface";
+import { useCalendarStore } from "@/stores/calendar-store";
+import { CalendarColorPicker } from "@/components/settings/calendar-management-settings";
+import { toast } from "@/stores/toast-store";
+
+interface CreateCalendarModalProps {
+  client: IJMAPClient;
+  onClose: () => void;
+}
+
+export function CreateCalendarModal({ client, onClose }: CreateCalendarModalProps) {
+  const t = useTranslations("calendar.management");
+  const tCommon = useTranslations("common");
+  const createCalendar = useCalendarStore((s) => s.createCalendar);
+
+  const [name, setName] = useState("");
+  const [color, setColor] = useState("#3b82f6");
+  const [isSubmitting, setIsSubmitting] = useState(false);
+  const modalRef = useRef<HTMLDivElement>(null);
+
+  const isValid = name.trim().length > 0;
+
+  const handleSubmit = useCallback(async () => {
+    const trimmed = name.trim();
+    if (!trimmed) return;
+    setIsSubmitting(true);
+    try {
+      const created = await createCalendar(client, { name: trimmed, color });
+      if (created) {
+        toast.success(t("calendar_created"));
+        onClose();
+      } else {
+        toast.error(t("error_create"));
+      }
+    } catch {
+      toast.error(t("error_create"));
+    } finally {
+      setIsSubmitting(false);
+    }
+  }, [name, color, client, createCalendar, onClose, t]);
+
+  useEffect(() => {
+    const handleKey = (e: KeyboardEvent) => {
+      if (e.key === "Escape" && !isSubmitting) onClose();
+    };
+    window.addEventListener("keydown", handleKey);
+    return () => window.removeEventListener("keydown", handleKey);
+  }, [onClose, isSubmitting]);
+
+  useEffect(() => {
+    const modal = modalRef.current;
+    if (!modal) return;
+    const focusableEls = modal.querySelectorAll<HTMLElement>(
+      'input, select, textarea, button, [tabindex]:not([tabindex="-1"])'
+    );
+    const firstEl = focusableEls[0];
+    const lastEl = focusableEls[focusableEls.length - 1];
+
+    const handler = (e: KeyboardEvent) => {
+      if (e.key !== "Tab") return;
+      if (e.shiftKey && document.activeElement === firstEl) {
+        e.preventDefault();
+        lastEl?.focus();
+      } else if (!e.shiftKey && document.activeElement === lastEl) {
+        e.preventDefault();
+        firstEl?.focus();
+      }
+    };
+    modal.addEventListener("keydown", handler);
+    firstEl?.focus();
+    return () => modal.removeEventListener("keydown", handler);
+  }, []);
+
+  return (
+    <div className="fixed inset-0 z-50 flex items-center justify-center">
+      <div
+        className="absolute inset-0 bg-black/50 backdrop-blur-[1px]"
+        onClick={() => !isSubmitting && onClose()}
+        aria-hidden="true"
+      />
+      <div
+        ref={modalRef}
+        role="dialog"
+        aria-modal="true"
+        aria-label={t("add_calendar")}
+        className="relative bg-background border border-border rounded-lg shadow-xl w-full max-w-md mx-4 animate-in zoom-in-95 duration-200"
+      >
+        <div className="flex items-center justify-between px-6 py-4 border-b border-border">
+          <div className="flex items-center gap-2">
+            <CalendarIcon className="w-5 h-5 text-primary" />
+            <h2 className="text-lg font-semibold">{t("add_calendar")}</h2>
+          </div>
+          <button
+            onClick={onClose}
+            disabled={isSubmitting}
+            className="p-1.5 rounded-md hover:bg-muted transition-colors duration-150 text-muted-foreground hover:text-foreground disabled:opacity-50"
+            aria-label={tCommon("close")}
+          >
+            <X className="w-5 h-5" />
+          </button>
+        </div>
+
+        <div className="px-6 py-4 space-y-4">
+          <div>
+            <label className="text-xs font-medium text-muted-foreground mb-1 block">
+              {t("name")}
+            </label>
+            <input
+              type="text"
+              value={name}
+              onChange={(e) => setName(e.target.value)}
+              placeholder={t("name_placeholder")}
+              className="w-full rounded-md border border-input bg-background px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-ring"
+              disabled={isSubmitting}
+              onKeyDown={(e) => { if (e.key === "Enter" && isValid) handleSubmit(); }}
+            />
+          </div>
+
+          <div>
+            <label className="text-xs font-medium text-muted-foreground mb-1 block">
+              {t("color")}
+            </label>
+            <CalendarColorPicker value={color} onChange={setColor} allowCustom />
+          </div>
+        </div>
+
+        <div className="flex items-center justify-end gap-2 px-6 py-4 border-t border-border">
+          <Button variant="outline" onClick={onClose} disabled={isSubmitting}>
+            {tCommon("cancel")}
+          </Button>
+          <Button onClick={handleSubmit} disabled={!isValid || isSubmitting}>
+            {isSubmitting ? (
+              <>
+                <Loader2 className="w-4 h-4 animate-spin mr-2" />
+                {tCommon("loading")}
+              </>
+            ) : (
+              t("create")
+            )}
+          </Button>
+        </div>
+      </div>
+    </div>
+  );
+}

components/calendar/event-modal.tsx

@@ -35,6 +35,7 @@ interface EventModalProps {
   calendars: Calendar[];
   defaultDate?: Date;
   defaultEndDate?: Date;
+  defaultCalendarId?: string;
   onSave: (data: Partial<CalendarEvent>, sendSchedulingMessages?: boolean) => void | Promise<void>;
   onDelete?: (id: string, sendSchedulingMessages?: boolean) => void;
   onDuplicate?: (data: Partial<CalendarEvent>) => void;
@@ -113,6 +114,7 @@ export function EventModal({
   calendars,
   defaultDate,
   defaultEndDate,
+  defaultCalendarId,
   onSave,
   onDelete,
   onDuplicate,
@@ -200,6 +202,7 @@ export function EventModal({
   const [allDay, setAllDay] = useState(event?.showWithoutTime || false);
   const [calendarId, setCalendarId] = useState<string>(() => {
     if (event?.calendarIds) return getPrimaryCalendarId(event) || calendars[0]?.id || "";
+    if (defaultCalendarId && calendars.some(c => c.id === defaultCalendarId)) return defaultCalendarId;
     const defaultCal = calendars.find(c => c.isDefault);
     return defaultCal?.id || calendars[0]?.id || "";
   });

components/contacts/contact-form.tsx

@@ -50,6 +50,7 @@ interface ContactFormProps {
   contact?: ContactCard | null;
   addressBooks?: AddressBook[];
   allKeywords?: string[];
+  defaultAddressBookId?: string;
   onSave: (data: Partial<ContactCard>) => Promise<void>;
   onCancel: () => void;
 }
@@ -143,11 +144,13 @@ function Select({ value, onChange, children, className }: {
   );
 }
 
-export function ContactForm({ contact, addressBooks, allKeywords, onSave, onCancel }: ContactFormProps) {
+export function ContactForm({ contact, addressBooks, allKeywords, defaultAddressBookId, onSave, onCancel }: ContactFormProps) {
   const t = useTranslations("contacts.form");
   const isEditing = !!contact;
 
-  const findComponent = (kind: string) => contact?.name?.components?.find(c => c.kind === kind)?.value || "";
+  // Accept JSContact-standard kinds (RFC 9553) and legacy vCard-style aliases.
+  const findComponent = (...kinds: string[]) =>
+    contact?.name?.components?.find(c => kinds.includes(c.kind))?.value || "";
 
   // Convert RFC 9553 AnniversaryDate to ISO date string for HTML date input
   function anniversaryDateToString(date: AnniversaryDate): string {
@@ -210,11 +213,11 @@ export function ContactForm({ contact, addressBooks, allKeywords, onSave, onCanc
     };
   }
 
-  const [prefix, setPrefix] = useState(findComponent("prefix"));
+  const [prefix, setPrefix] = useState(findComponent("title", "prefix"));
   const [givenName, setGivenName] = useState(findComponent("given"));
-  const [additionalName, setAdditionalName] = useState(findComponent("additional"));
+  const [additionalName, setAdditionalName] = useState(findComponent("given2", "additional", "middle"));
   const [surname, setSurname] = useState(findComponent("surname"));
-  const [suffix, setSuffix] = useState(findComponent("suffix"));
+  const [suffix, setSuffix] = useState(findComponent("generation", "suffix"));
 
   const [nickname, setNickname] = useState(
     contact?.nicknames ? Object.values(contact.nicknames)[0]?.name || "" : ""
@@ -328,8 +331,11 @@ export function ContactForm({ contact, addressBooks, allKeywords, onSave, onCanc
         return ids[0];
       }
     }
+    if (defaultAddressBookId && addressBooks?.some(b => b.id === defaultAddressBookId)) {
+      return defaultAddressBookId;
+    }
     return "";
-  }, [contact]);
+  }, [contact, defaultAddressBookId, addressBooks]);
   const [selectedBookId, setSelectedBookId] = useState(currentBookId);
 
   const initialPhotoEntry = useMemo(() => {
@@ -436,12 +442,13 @@ export function ContactForm({ contact, addressBooks, allKeywords, onSave, onCanc
       phonesMap[`p${i}`] = obj;
     });
 
+    // Emit JSContact-standard kinds (RFC 9553) so the JMAP server stores them losslessly.
     const nameComponents = [];
-    if (prefix.trim()) nameComponents.push({ kind: "prefix" as const, value: prefix.trim() });
+    if (prefix.trim()) nameComponents.push({ kind: "title" as const, value: prefix.trim() });
     if (givenName.trim()) nameComponents.push({ kind: "given" as const, value: givenName.trim() });
-    if (additionalName.trim()) nameComponents.push({ kind: "additional" as const, value: additionalName.trim() });
+    if (additionalName.trim()) nameComponents.push({ kind: "given2" as const, value: additionalName.trim() });
     if (surname.trim()) nameComponents.push({ kind: "surname" as const, value: surname.trim() });
-    if (suffix.trim()) nameComponents.push({ kind: "suffix" as const, value: suffix.trim() });
+    if (suffix.trim()) nameComponents.push({ kind: "generation" as const, value: suffix.trim() });
 
     const titlesMap: Record<string, { name: string; kind?: "title" | "role" }> = {};
     if (jobTitle.trim()) titlesMap["t0"] = { name: jobTitle.trim(), kind: "title" };

components/contacts/contacts-sidebar.tsx

@@ -27,6 +27,9 @@ interface ContactsSidebarProps {
   onDropContacts?: (contactIds: string[], addressBook: AddressBook) => void;
   onDropContactsToCategory?: (contactIds: string[], keyword: string) => void;
   onRenameAddressBook?: (addressBook: AddressBook) => void;
+  onShareAddressBook?: (addressBook: AddressBook) => void;
+  onCreateContactInBook?: (addressBook: AddressBook) => void;
+  onDeleteAddressBook?: (addressBook: AddressBook) => void;
   onRenameKeyword?: (keyword: string) => void;
   className?: string;
 }
@@ -62,6 +65,9 @@ export function ContactsSidebar({
   onDropContacts,
   onDropContactsToCategory,
   onRenameAddressBook,
+  onShareAddressBook,
+  onCreateContactInBook,
+  onDeleteAddressBook,
   onRenameKeyword,
   className,
 }: ContactsSidebarProps) {
@@ -288,7 +294,7 @@ export function ContactsSidebar({
                 contactCount={contactCountByBook[book.id] || 0}
                 onSelect={() => onSelectCategory({ addressBookId: book.id })}
                 onDropContacts={onDropContacts}
-                onContextMenu={onRenameAddressBook ? (e) => openBookContextMenu(e, book) : undefined}
+                onContextMenu={(onRenameAddressBook || onShareAddressBook || onCreateContactInBook || onDeleteAddressBook) ? (e) => openBookContextMenu(e, book) : undefined}
               />
             ))}
           </div>
@@ -430,7 +436,7 @@ export function ContactsSidebar({
                 contactCount={contactCountByBook[book.id] || 0}
                 onSelect={() => onSelectCategory({ addressBookId: book.id })}
                 onDropContacts={onDropContacts}
-                onContextMenu={onRenameAddressBook ? (e) => openBookContextMenu(e, book) : undefined}
+                onContextMenu={(onRenameAddressBook || onShareAddressBook || onCreateContactInBook || onDeleteAddressBook) ? (e) => openBookContextMenu(e, book) : undefined}
               />
             ))}
           </div>
@@ -438,24 +444,65 @@ export function ContactsSidebar({
       </div>
 
       {/* Address book context menu */}
-      {bookContextMenu.data && onRenameAddressBook && (
-        <ContextMenu
-          ref={bookMenuRef}
-          isOpen={bookContextMenu.isOpen}
-          position={bookContextMenu.position}
-          onClose={closeBookContextMenu}
-        >
-          <ContextMenuItem
-            icon={Pencil}
-            label={t("address_books.rename")}
-            onClick={() => {
-              const book = bookContextMenu.data!;
-              closeBookContextMenu();
-              onRenameAddressBook(book);
-            }}
-          />
-        </ContextMenu>
-      )}
+      {bookContextMenu.data && (onRenameAddressBook || onShareAddressBook || onCreateContactInBook || onDeleteAddressBook) && (() => {
+        const book = bookContextMenu.data;
+        const canCreate = onCreateContactInBook && book.myRights?.mayWrite !== false;
+        const canRename = onRenameAddressBook && book.myRights?.mayWrite !== false;
+        const canShare = onShareAddressBook && book.myRights?.mayShare && !book.isShared;
+        const canDelete = onDeleteAddressBook && !book.isDefault && !book.isShared && book.myRights?.mayDelete !== false;
+        const showSeparator = (canCreate || canRename || canShare) && canDelete;
+        return (
+          <ContextMenu
+            ref={bookMenuRef}
+            isOpen={bookContextMenu.isOpen}
+            position={bookContextMenu.position}
+            onClose={closeBookContextMenu}
+          >
+            {canCreate && (
+              <ContextMenuItem
+                icon={UserPlus}
+                label={t("address_books.new_contact_in_book")}
+                onClick={() => {
+                  closeBookContextMenu();
+                  onCreateContactInBook(book);
+                }}
+              />
+            )}
+            {canRename && (
+              <ContextMenuItem
+                icon={Pencil}
+                label={t("address_books.rename")}
+                onClick={() => {
+                  closeBookContextMenu();
+                  onRenameAddressBook(book);
+                }}
+              />
+            )}
+            {canShare && (
+              <ContextMenuItem
+                icon={Users}
+                label={t("address_books.share")}
+                onClick={() => {
+                  closeBookContextMenu();
+                  onShareAddressBook(book);
+                }}
+              />
+            )}
+            {showSeparator && <ContextMenuSeparator />}
+            {canDelete && (
+              <ContextMenuItem
+                icon={Trash2}
+                label={t("address_books.delete")}
+                onClick={() => {
+                  closeBookContextMenu();
+                  onDeleteAddressBook(book);
+                }}
+                destructive
+              />
+            )}
+          </ContextMenu>
+        );
+      })()}
 
       {/* Keyword (category) context menu */}
       {keywordContextMenu.data && onRenameKeyword && (

components/email/email-composer.tsx

@@ -1100,8 +1100,14 @@ export function EmailComposer({
   };
 
   return (
+    <div className={cn("flex h-full bg-background", className)}>
+      <PluginSlot
+        name="composer-sidebar"
+        className="hidden md:flex shrink-0 h-full overflow-hidden border-r border-border"
+      />
+      {/* Right-side composer sidebar slot is rendered after the main content div below. */}
     <div
-      className={cn("flex flex-col h-full bg-background relative", className)}
+      className="flex flex-col h-full bg-background relative flex-1 min-w-0"
       data-tour="composer"
       onDragEnter={handleDragEnter}
       onDragLeave={handleDragLeave}
@@ -1674,6 +1680,11 @@ export function EmailComposer({
         </div>
       )}
     </div>
+      <PluginSlot
+        name="composer-sidebar-right"
+        className="hidden md:flex shrink-0 h-full overflow-hidden border-l border-border"
+      />
+    </div>
   );
 }
 

components/email/email-list-item.tsx

@@ -37,6 +37,7 @@ export function EmailListItem({ email, selected, onClick, onContextMenu, onToggl
   const density = useSettingsStore((state) => state.density);
   const mailLayout = useSettingsStore((state) => state.mailLayout);
   const emailKeywords = useSettingsStore((state) => state.emailKeywords);
+  const showAvatarsInJunk = useSettingsStore((state) => state.showAvatarsInJunk);
   const { identities } = useAuthStore();
   const isChecked = selectedEmailIds.has(email.id);
   const isUnread = !email.keywords?.$seen;
@@ -49,6 +50,7 @@ export function EmailListItem({ email, selected, onClick, onContextMenu, onToggl
   const showRecipient = currentMailboxRole === 'sent' || currentMailboxRole === 'drafts';
   const sender = showRecipient ? (email.to?.[0] ?? email.from?.[0]) : email.from?.[0];
   const isFocusedMailLayout = mailLayout === 'focus';
+  const hideJunkAvatarImages = currentMailboxRole === 'junk' && !showAvatarsInJunk;
   const inlinePreview = showPreview && email.preview ? ` ${email.preview}` : '';
 
   // Resolve color tags using keyword definitions from settings; unknown tags fall back to gray
@@ -164,6 +166,7 @@ export function EmailListItem({ email, selected, onClick, onContextMenu, onToggl
             email={sender?.email}
             size="md"
             className="flex-shrink-0 shadow-sm"
+            disableImages={hideJunkAvatarImages}
           />
         )}
 
@@ -285,7 +288,7 @@ export function EmailListItem({ email, selected, onClick, onContextMenu, onToggl
               </div>
 
               {/* Third Line: Preview (controlled by showPreview setting) */}
-              {showPreview && density !== 'extra-compact' && (
+              {showPreview && density !== 'extra-compact' && density !== 'compact' && (
                 <p className={cn(
                   "text-sm leading-relaxed line-clamp-2",
                   isUnread

components/email/email-viewer.tsx

@@ -3436,70 +3436,172 @@ export function EmailViewer({
         moreMenuOpen ? "translate-x-0" : "translate-x-full"
       )}>
         <div className="flex items-center justify-between px-4 py-3 border-b border-border">
-          <span className="text-sm font-semibold text-foreground">{t('more_actions')}</span>
-          <Button variant="ghost" size="icon" onClick={() => setMoreMenuOpen(false)} className="h-9 w-9">
+          {moreMenuSub ? (
+            <button
+              onClick={() => setMoreMenuSub(null)}
+              className="flex items-center gap-1 -ml-2 px-2 py-1 rounded hover:bg-muted text-sm font-semibold text-foreground"
+            >
+              <ChevronLeft className="w-5 h-5" />
+              {moreMenuSub === 'move' ? t('move_to') : t('tag')}
+            </button>
+          ) : (
+            <span className="text-sm font-semibold text-foreground">{t('more_actions')}</span>
+          )}
+          <Button variant="ghost" size="icon" onClick={() => { setMoreMenuOpen(false); setMoreMenuSub(null); }} className="h-9 w-9">
             <X className="w-5 h-5" />
           </Button>
         </div>
         <div className="flex-1 overflow-y-auto py-2">
-          <button
-            onClick={() => { onArchive?.(); setMoreMenuOpen(false); }}
-            className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
-          >
-            <Archive className="w-5 h-5" />
-            {t('archive')}
-          </button>
-          {/* Move to folder */}
-          {moveTree.length > 0 && onMoveToMailbox && (
+          {moreMenuSub === null && (
             <>
+              <button
+                onClick={() => { onArchive?.(); setMoreMenuOpen(false); }}
+                className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
+              >
+                <Archive className="w-5 h-5" />
+                {t('archive')}
+              </button>
+              {/* Move to folder (opens sub-view) */}
+              {moveTree.length > 0 && onMoveToMailbox && (
+                <button
+                  onClick={() => setMoreMenuSub('move')}
+                  className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
+                >
+                  <FolderInput className="w-5 h-5" />
+                  <span className="flex-1">{t('move_to')}</span>
+                  <ChevronRight className="w-4 h-4 text-muted-foreground" />
+                </button>
+              )}
+              {/* Tag (opens sub-view) */}
+              {colorOptions.length > 0 && (
+                <button
+                  onClick={() => setMoreMenuSub('tag')}
+                  className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
+                >
+                  <Tag className="w-5 h-5" />
+                  <span className="flex-1">{t('tag')}</span>
+                  {currentColors.length > 0 && (
+                    <div className="flex -space-x-1 mr-1">
+                      {currentColors.slice(0, 3).map((c) => {
+                        const opt = colorOptions.find((o) => o.value === c);
+                        return opt ? <span key={c} className={cn("w-3 h-3 rounded-full border border-background", opt.color)} /> : null;
+                      })}
+                    </div>
+                  )}
+                  <ChevronRight className="w-4 h-4 text-muted-foreground" />
+                </button>
+              )}
+              {/* Spam */}
+              {(onMarkAsSpam || onUndoSpam) && (
+                <button
+                  onClick={() => { (isInJunkFolder ? onUndoSpam : onMarkAsSpam)?.(); setMoreMenuOpen(false); }}
+                  className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
+                >
+                  {isInJunkFolder ? (
+                    <ShieldCheck className="h-5 w-5 text-green-600 dark:text-green-400" />
+                  ) : (
+                    <ShieldAlert className="h-5 w-5 text-red-600 dark:text-red-400" />
+                  )}
+                  {isInJunkFolder ? t('spam.not_spam_title') : t('spam.button_title')}
+                </button>
+              )}
+              {/* Toggle read state */}
+              <button
+                onClick={() => { onMarkAsRead?.(email.id, isUnread); setMoreMenuOpen(false); }}
+                className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
+              >
+                {isUnread ? <MailOpen className="w-5 h-5" /> : <Mail className="w-5 h-5" />}
+                {isUnread ? t('mark_read') : t('mark_unread')}
+              </button>
+              <button
+                onClick={() => { handlePrint(); setMoreMenuOpen(false); }}
+                className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
+              >
+                <Printer className="w-5 h-5" />
+                {t('print')}
+              </button>
+              <button
+                onClick={() => { setShowSourceModal(true); setMoreMenuOpen(false); }}
+                className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
+              >
+                <Code className="w-5 h-5" />
+                {t('view_source')}
+              </button>
+              {effectiveEmailContent.isHtml && (
+                <button
+                  onClick={() => { setEmailViewDarkOverride(prev => prev === null ? !(resolvedTheme === 'dark') : !prev); setMoreMenuOpen(false); }}
+                  className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
+                >
+                  {isDark ? <Sun className="w-5 h-5" /> : <Moon className="w-5 h-5" />}
+                  {isDark ? 'View in light mode' : 'View in dark mode'}
+                </button>
+              )}
               <div className="h-px bg-border my-1" />
-              <div className="px-4 py-2 text-xs font-medium text-muted-foreground uppercase tracking-wider">{t('move_to')}</div>
-              {(() => {
-                const renderMobileNodes = (nodes: MailboxNode[], depth = 0) => {
-                  return nodes.map((node) => {
-                    const Icon = getMoveMailboxIcon(node.role);
-                    const isTarget = moveTargetIds.has(node.id);
-                    return (
-                      <div key={node.id}>
-                        {isTarget ? (
-                          <button
-                            onClick={() => { onMoveToMailbox(node.id); setMoreMenuOpen(false); }}
-                            className="w-full px-4 py-2.5 min-h-[44px] text-sm text-left hover:bg-muted flex items-center gap-3"
-                            style={{ paddingLeft: `${1 + depth * 1}rem` }}
-                          >
-                            <Icon className="w-5 h-5 flex-shrink-0" />
-                            <span className="truncate">{node.name}</span>
-                          </button>
-                        ) : (
-                          <div
-                            className="px-4 py-2.5 min-h-[44px] text-sm flex items-center gap-3 text-muted-foreground"
-                            style={{ paddingLeft: `${1 + depth * 1}rem` }}
-                          >
-                            <Icon className="w-5 h-5 flex-shrink-0" />
-                            <span>{node.name}</span>
-                          </div>
-                        )}
-                        {node.children.length > 0 && renderMobileNodes(node.children, depth + 1)}
-                      </div>
-                    );
-                  });
-                };
-                return renderMobileNodes(moveTree);
-              })()}
-              <div className="h-px bg-border my-1" />
+              <button
+                onClick={() => { handleExportEmail(); setMoreMenuOpen(false); }}
+                className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
+              >
+                <Download className="w-5 h-5" />
+                {t('export_email')}
+              </button>
+              <button
+                onClick={() => { handleImportEmail(); setMoreMenuOpen(false); }}
+                className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
+              >
+                <Upload className="w-5 h-5" />
+                {t('import_email')}
+              </button>
+              {onShowShortcuts && (
+                <button
+                  onClick={() => { onShowShortcuts(); setMoreMenuOpen(false); }}
+                  className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
+                >
+                  <Keyboard className="w-5 h-5" />
+                  {t('keyboard_shortcuts')}
+                </button>
+              )}
             </>
           )}
-          {/* Tags */}
-          {colorOptions.length > 0 && (
+          {moreMenuSub === 'move' && moveTree.length > 0 && onMoveToMailbox && (() => {
+            const renderMobileNodes = (nodes: MailboxNode[], depth = 0) => {
+              return nodes.map((node) => {
+                const Icon = getMoveMailboxIcon(node.role);
+                const isTarget = moveTargetIds.has(node.id);
+                return (
+                  <div key={node.id}>
+                    {isTarget ? (
+                      <button
+                        onClick={() => { onMoveToMailbox(node.id); setMoreMenuOpen(false); setMoreMenuSub(null); }}
+                        className="w-full px-4 py-2.5 min-h-[44px] text-sm text-left hover:bg-muted flex items-center gap-3"
+                        style={{ paddingLeft: `${1 + depth * 1}rem` }}
+                      >
+                        <Icon className="w-5 h-5 flex-shrink-0" />
+                        <span className="truncate">{node.name}</span>
+                      </button>
+                    ) : (
+                      <div
+                        className="px-4 py-2.5 min-h-[44px] text-sm flex items-center gap-3 text-muted-foreground"
+                        style={{ paddingLeft: `${1 + depth * 1}rem` }}
+                      >
+                        <Icon className="w-5 h-5 flex-shrink-0" />
+                        <span>{node.name}</span>
+                      </div>
+                    )}
+                    {node.children.length > 0 && renderMobileNodes(node.children, depth + 1)}
+                  </div>
+                );
+              });
+            };
+            return renderMobileNodes(moveTree);
+          })()}
+          {moreMenuSub === 'tag' && colorOptions.length > 0 && (
             <>
-              <div className="h-px bg-border my-1" />
-              <div className="px-4 py-2 text-xs font-medium text-muted-foreground uppercase tracking-wider">{t('tag')}</div>
               {colorOptions.map((option) => {
                 const isActive = currentColors.includes(option.value);
                 return (
                   <button
                     key={option.value}
-                    onClick={() => { if (email) onSetColorTag?.(email.id, option.value); setMoreMenuOpen(false); }}
+                    onClick={() => { if (email) onSetColorTag?.(email.id, option.value); setMoreMenuOpen(false); setMoreMenuSub(null); }}
                     className={cn(
                       "w-full px-4 py-2.5 min-h-[44px] text-sm text-left hover:bg-muted flex items-center gap-3",
                       isActive && "bg-accent font-medium"
@@ -3513,85 +3615,15 @@ export function EmailViewer({
               })}
               {currentColors.length > 0 && (
                 <button
-                  onClick={() => { if (email) onSetColorTag?.(email.id, null); setMoreMenuOpen(false); }}
+                  onClick={() => { if (email) onSetColorTag?.(email.id, null); setMoreMenuOpen(false); setMoreMenuSub(null); }}
                   className="w-full px-4 py-2.5 min-h-[44px] text-sm text-left hover:bg-muted flex items-center gap-3 text-muted-foreground"
                 >
                   <X className="w-4 h-4 flex-shrink-0" />
                   <span>{t('remove_color')}</span>
                 </button>
               )}
-              <div className="h-px bg-border my-1" />
             </>
           )}
-          {/* Spam */}
-          {(onMarkAsSpam || onUndoSpam) && (
-            <button
-              onClick={() => { (isInJunkFolder ? onUndoSpam : onMarkAsSpam)?.(); setMoreMenuOpen(false); }}
-              className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
-            >
-              {isInJunkFolder ? (
-                <ShieldCheck className="h-5 w-5 text-green-600 dark:text-green-400" />
-              ) : (
-                <ShieldAlert className="h-5 w-5 text-red-600 dark:text-red-400" />
-              )}
-              {isInJunkFolder ? t('spam.not_spam_title') : t('spam.button_title')}
-            </button>
-          )}
-          {/* Toggle read state */}
-          <button
-            onClick={() => { onMarkAsRead?.(email.id, isUnread); setMoreMenuOpen(false); }}
-            className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
-          >
-            {isUnread ? <MailOpen className="w-5 h-5" /> : <Mail className="w-5 h-5" />}
-            {isUnread ? t('mark_read') : t('mark_unread')}
-          </button>
-          <button
-            onClick={() => { handlePrint(); setMoreMenuOpen(false); }}
-            className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
-          >
-            <Printer className="w-5 h-5" />
-            {t('print')}
-          </button>
-          <button
-            onClick={() => { setShowSourceModal(true); setMoreMenuOpen(false); }}
-            className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
-          >
-            <Code className="w-5 h-5" />
-            {t('view_source')}
-          </button>
-          {effectiveEmailContent.isHtml && (
-            <button
-              onClick={() => { setEmailViewDarkOverride(prev => prev === null ? !(resolvedTheme === 'dark') : !prev); setMoreMenuOpen(false); }}
-              className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
-            >
-              {isDark ? <Sun className="w-5 h-5" /> : <Moon className="w-5 h-5" />}
-              {isDark ? 'View in light mode' : 'View in dark mode'}
-            </button>
-          )}
-          <div className="h-px bg-border my-1" />
-          <button
-            onClick={() => { handleExportEmail(); setMoreMenuOpen(false); }}
-            className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
-          >
-            <Download className="w-5 h-5" />
-            {t('export_email')}
-          </button>
-          <button
-            onClick={() => { handleImportEmail(); setMoreMenuOpen(false); }}
-            className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
-          >
-            <Upload className="w-5 h-5" />
-            {t('import_email')}
-          </button>
-          {onShowShortcuts && (
-            <button
-              onClick={() => { onShowShortcuts(); setMoreMenuOpen(false); }}
-              className="w-full px-4 py-3 min-h-[44px] text-sm text-left hover:bg-muted text-foreground flex items-center gap-3"
-            >
-              <Keyboard className="w-5 h-5" />
-              {t('keyboard_shortcuts')}
-            </button>
-          )}
         </div>
       </div>
     )}

components/email/thread-list-item.tsx

@@ -64,6 +64,8 @@ const SingleEmailItem = React.forwardRef<HTMLDivElement, SingleEmailItemProps>(
     const emailKeywords = useSettingsStore((state) => state.emailKeywords);
     const density = useSettingsStore((state) => state.density);
     const mailLayout = useSettingsStore((state) => state.mailLayout);
+    const showAvatarsInJunk = useSettingsStore((state) => state.showAvatarsInJunk);
+    const hideJunkAvatarImages = currentMailboxRole === 'junk' && !showAvatarsInJunk;
     const isUnifiedView = useEmailStore((state) => state.isUnifiedView);
     const getAccountById = useAccountStore((state) => state.getAccountById);
     const accountColor = email.accountId ? getAccountById(email.accountId)?.avatarColor : undefined;
@@ -182,6 +184,7 @@ const SingleEmailItem = React.forwardRef<HTMLDivElement, SingleEmailItemProps>(
               email={sender?.email}
               size="md"
               className="flex-shrink-0 shadow-sm"
+              disableImages={hideJunkAvatarImages}
             />
           )}
 
@@ -306,7 +309,7 @@ const SingleEmailItem = React.forwardRef<HTMLDivElement, SingleEmailItemProps>(
                   {email.subject || "(no subject)"}
                 </div>
 
-                {showPreview && density !== 'extra-compact' && (
+                {showPreview && density !== 'extra-compact' && density !== 'compact' && (
                   <p className={cn(
                     "text-sm leading-relaxed line-clamp-2",
                     isUnread
@@ -359,6 +362,7 @@ export const ThreadListItem = React.forwardRef<HTMLDivElement, ThreadListItemPro
     const showPreview = useSettingsStore((state) => state.showPreview);
     const density = useSettingsStore((state) => state.density);
     const mailLayout = useSettingsStore((state) => state.mailLayout);
+    const showAvatarsInJunk = useSettingsStore((state) => state.showAvatarsInJunk);
     const isMobile = useUIStore((state) => state.isMobile);
     const { latestEmail, participantNames, hasUnread, hasStarred, hasAttachment, hasAnswered, hasForwarded, emailCount } = thread;
     const isFocusedMailLayout = mailLayout === 'focus';
@@ -376,6 +380,7 @@ export const ThreadListItem = React.forwardRef<HTMLDivElement, ThreadListItemPro
         )).slice(0, 4)
       : participantNames;
     const avatarPerson = showRecipient ? latestEmail.to?.[0] : latestEmail.from?.[0];
+    const hideJunkAvatarImages = currentMailboxRole === 'junk' && !showAvatarsInJunk;
 
     const { dragHandlers, isDragging: isThreadDragging } = useEmailDrag({
       email: latestEmail,
@@ -563,6 +568,7 @@ export const ThreadListItem = React.forwardRef<HTMLDivElement, ThreadListItemPro
                 email={avatarPerson?.email}
                 size="md"
                 className="flex-shrink-0 shadow-sm"
+                disableImages={hideJunkAvatarImages}
               />
             )}
 
@@ -709,7 +715,7 @@ export const ThreadListItem = React.forwardRef<HTMLDivElement, ThreadListItemPro
                     {latestEmail.subject || "(no subject)"}
                   </div>
 
-                  {showPreview && density !== 'extra-compact' && (
+                  {showPreview && density !== 'extra-compact' && density !== 'compact' && (
                     <p className={cn(
                       "text-sm leading-relaxed line-clamp-2",
                       hasUnread

components/layout/mailbox-context-menu.tsx

@@ -0,0 +1,171 @@
+"use client";
+
+import { useTranslations } from "next-intl";
+import { Mailbox } from "@/lib/jmap/types";
+import {
+  ContextMenu,
+  ContextMenuItem,
+  ContextMenuSeparator,
+  ContextMenuHeader,
+} from "@/components/ui/context-menu";
+import {
+  CheckCheck,
+  MailOpen,
+  Mails,
+  Trash2,
+  FolderPlus,
+  Pencil,
+  FolderX,
+  RefreshCw,
+} from "lucide-react";
+
+interface Position {
+  x: number;
+  y: number;
+}
+
+export type MailboxContextTarget =
+  | { kind: "mailbox"; mailbox: Mailbox; hasChildren: boolean }
+  | { kind: "folders-section" };
+
+interface MailboxContextMenuProps {
+  target: MailboxContextTarget | null;
+  position: Position;
+  isOpen: boolean;
+  onClose: () => void;
+  menuRef: React.RefObject<HTMLDivElement | null>;
+  onMarkFolderRead?: (mailboxId: string) => void;
+  onMarkFolderTreeRead?: (mailboxId: string) => void;
+  onMarkAllFoldersRead?: () => void;
+  onEmptyFolder?: (mailboxId: string) => void;
+  onCreateSubfolder?: (parentId: string) => void;
+  onCreateFolder?: () => void;
+  onRenameFolder?: (mailboxId: string) => void;
+  onDeleteFolder?: (mailboxId: string) => void;
+  onRefresh?: () => void;
+}
+
+export function MailboxContextMenu({
+  target,
+  position,
+  isOpen,
+  onClose,
+  menuRef,
+  onMarkFolderRead,
+  onMarkFolderTreeRead,
+  onMarkAllFoldersRead,
+  onEmptyFolder,
+  onCreateSubfolder,
+  onCreateFolder,
+  onRenameFolder,
+  onDeleteFolder,
+  onRefresh,
+}: MailboxContextMenuProps) {
+  const t = useTranslations("mailbox_context_menu");
+
+  const handleAction = (action: () => void) => {
+    action();
+    onClose();
+  };
+
+  if (!target) return null;
+
+  if (target.kind === "folders-section") {
+    return (
+      <ContextMenu ref={menuRef} isOpen={isOpen} position={position} onClose={onClose}>
+        <ContextMenuItem
+          icon={CheckCheck}
+          label={t("mark_all_folders_read")}
+          onClick={() => handleAction(onMarkAllFoldersRead!)}
+          disabled={!onMarkAllFoldersRead}
+        />
+        <ContextMenuSeparator />
+        <ContextMenuItem
+          icon={FolderPlus}
+          label={t("new_folder")}
+          onClick={() => handleAction(onCreateFolder!)}
+          disabled={!onCreateFolder}
+        />
+        <ContextMenuItem
+          icon={RefreshCw}
+          label={t("refresh")}
+          onClick={() => handleAction(onRefresh!)}
+          disabled={!onRefresh}
+        />
+      </ContextMenu>
+    );
+  }
+
+  const mailbox = target.mailbox;
+  const isTrashOrJunk = mailbox.role === "trash" || mailbox.role === "junk";
+  const isSystem =
+    !!mailbox.role &&
+    ["inbox", "sent", "drafts", "trash", "junk", "archive"].includes(mailbox.role);
+  const canRename = mailbox.myRights?.mayRename !== false && !isSystem;
+  const canDelete = mailbox.myRights?.mayDelete !== false && !isSystem;
+  const canCreateChild = mailbox.myRights?.mayCreateChild !== false;
+  const canSetSeen = mailbox.myRights?.maySetSeen !== false;
+  const canRemoveItems = mailbox.myRights?.mayRemoveItems !== false;
+
+  return (
+    <ContextMenu ref={menuRef} isOpen={isOpen} position={position} onClose={onClose}>
+      <ContextMenuHeader>{mailbox.name}</ContextMenuHeader>
+
+      <ContextMenuItem
+        icon={MailOpen}
+        label={t("mark_folder_read")}
+        onClick={() => handleAction(() => onMarkFolderRead?.(mailbox.id))}
+        disabled={!onMarkFolderRead || !canSetSeen}
+      />
+      {target.hasChildren && (
+        <ContextMenuItem
+          icon={Mails}
+          label={t("mark_folder_tree_read")}
+          onClick={() => handleAction(() => onMarkFolderTreeRead?.(mailbox.id))}
+          disabled={!onMarkFolderTreeRead || !canSetSeen}
+        />
+      )}
+
+      <ContextMenuSeparator />
+
+      <ContextMenuItem
+        icon={FolderPlus}
+        label={t("new_subfolder")}
+        onClick={() => handleAction(() => onCreateSubfolder?.(mailbox.id))}
+        disabled={!onCreateSubfolder || !canCreateChild}
+      />
+      <ContextMenuItem
+        icon={Pencil}
+        label={t("rename")}
+        onClick={() => handleAction(() => onRenameFolder?.(mailbox.id))}
+        disabled={!onRenameFolder || !canRename}
+      />
+
+      <ContextMenuSeparator />
+
+      <ContextMenuItem
+        icon={FolderX}
+        label={isTrashOrJunk ? t("empty_folder") : t("empty_folder_generic")}
+        onClick={() => handleAction(() => onEmptyFolder?.(mailbox.id))}
+        disabled={!onEmptyFolder || mailbox.totalEmails === 0 || !canRemoveItems}
+        destructive
+      />
+      <ContextMenuItem
+        icon={Trash2}
+        label={t("delete_folder")}
+        onClick={() => handleAction(() => onDeleteFolder?.(mailbox.id))}
+        disabled={!onDeleteFolder || !canDelete}
+        destructive
+      />
+
+      <ContextMenuSeparator />
+
+      <ContextMenuItem
+        icon={RefreshCw}
+        label={t("refresh")}
+        onClick={() => handleAction(onRefresh!)}
+        disabled={!onRefresh}
+      />
+    </ContextMenu>
+  );
+}

components/layout/navigation-rail.tsx

@@ -8,7 +8,6 @@ import { icons as lucideIcons, type LucideIcon } from "lucide-react";
 import { useConfig } from "@/hooks/use-config";
 import { useThemeStore } from "@/stores/theme-store";
 import { usePathname, Link, useRouter } from "@/i18n/navigation";
-import NextLink from "next/link";
 import { useTranslations } from "next-intl";
 import { useCalendarStore } from "@/stores/calendar-store";
 import { useEmailStore } from "@/stores/email-store";
@@ -336,9 +335,9 @@ export function NavigationRail({
           );
         })}
 
-        {/* Admin (Stalwart admins) */}
+        {/* Admin (Stalwart admins) — hard nav because /admin lives outside the [locale] tree */}
         {isStalwartAdmin && (
-          <NextLink
+          <a
             href="/admin"
             className={cn(
               "flex flex-col items-center justify-center gap-1 py-2 px-1 min-h-[44px] grow shrink-0 basis-[64px]",
@@ -348,7 +347,7 @@ export function NavigationRail({
           >
             <Shield className="w-5 h-5" />
             <span className="text-[10px] font-medium leading-tight truncate max-w-full">{t("admin") || "Admin"}</span>
-          </NextLink>
+          </a>
         )}
 
         {/* Settings */}
@@ -514,13 +513,13 @@ export function NavigationRail({
       {/* Footer: Admin + Settings + Help + Storage Quota + Sign Out + Push Status */}
       <div className="mt-auto flex flex-col items-center gap-2 pb-3 px-1">
         {isStalwartAdmin && (
-          <NextLink
+          <a
             href="/admin"
             className="flex items-center justify-center w-10 h-10 rounded-md transition-colors text-muted-foreground hover:text-foreground hover:bg-muted"
             title={t("admin") || "Admin"}
           >
             <Shield className="w-[18px] h-[18px]" />
-          </NextLink>
+          </a>
         )}
 
         <Link

components/layout/sidebar.tsx

@@ -31,6 +31,8 @@ import {
 } from "lucide-react";
 import { cn, buildMailboxTree, MailboxNode } from "@/lib/utils";
 import { Mailbox } from "@/lib/jmap/types";
+import { useContextMenu } from "@/hooks/use-context-menu";
+import { MailboxContextMenu, type MailboxContextTarget } from "./mailbox-context-menu";
 import { useAccountStore } from '@/stores/account-store';
 import { UNIFIED_MAILBOX_IDS } from '@/lib/jmap/types';
 import type { UnifiedMailboxRole } from '@/lib/jmap/types';
@@ -56,6 +58,15 @@ interface SidebarProps {
   onCompose?: () => void;
   onSidebarClose?: () => void;
   onUnreadFilterClick?: (mailboxId: string) => void;
+  onMarkFolderRead?: (mailboxId: string) => void;
+  onMarkFolderTreeRead?: (mailboxId: string) => void;
+  onMarkAllFoldersRead?: () => void;
+  onEmptyFolder?: (mailboxId: string) => void;
+  onCreateSubfolder?: (parentId: string) => void;
+  onCreateFolder?: () => void;
+  onRenameFolder?: (mailboxId: string) => void;
+  onDeleteFolder?: (mailboxId: string) => void;
+  onRefreshMailboxes?: () => void;
   className?: string;
 }
 
@@ -187,6 +198,7 @@ interface SidebarRowProps {
   dropHandlers?: Record<string, unknown>;
   isValidDropTarget?: boolean;
   isInvalidDropTarget?: boolean;
+  onContextMenu?: (e: React.MouseEvent) => void;
 }
 
 function SidebarRow({
@@ -206,6 +218,7 @@ function SidebarRow({
   dropHandlers,
   isValidDropTarget,
   isInvalidDropTarget,
+  onContextMenu,
 }: SidebarRowProps) {
   const t = useTranslations('sidebar');
   const leftPad = isCollapsed ? 0 : ROW_PX_BASE + depth * INDENT_STEP;
@@ -213,6 +226,7 @@ function SidebarRow({
   return (
     <div
       {...(dropHandlers || {})}
+      onContextMenu={onContextMenu}
       style={{ paddingBlock: 'var(--density-sidebar-py)' }}
       className={cn(
         "group w-full flex items-center max-lg:min-h-[44px] text-sm transition-colors duration-150",
@@ -365,6 +379,7 @@ function MailboxTreeItem({
   isCollapsed,
   onUnreadFilterClick,
   colorful,
+  onContextMenu,
 }: {
   node: MailboxNode;
   selectedMailbox: string;
@@ -374,6 +389,7 @@ function MailboxTreeItem({
   isCollapsed: boolean;
   onUnreadFilterClick?: (mailboxId: string) => void;
   colorful: boolean;
+  onContextMenu?: (e: React.MouseEvent, node: MailboxNode) => void;
 }) {
   const tNotifications = useTranslations('notifications');
   const hasChildren = node.children.length > 0;
@@ -423,6 +439,7 @@ function MailboxTreeItem({
         dropHandlers={globalDragging ? (dropHandlers as Record<string, unknown>) : undefined}
         isValidDropTarget={isValidDropTarget}
         isInvalidDropTarget={isInvalidDropTarget}
+        onContextMenu={onContextMenu && !isVirtualNode ? (e) => onContextMenu(e, node) : undefined}
       />
 
       {hasChildren && isExpanded && !isCollapsed && node.children.map((child) => (
@@ -436,6 +453,7 @@ function MailboxTreeItem({
           isCollapsed={isCollapsed}
           onUnreadFilterClick={onUnreadFilterClick}
           colorful={colorful}
+          onContextMenu={onContextMenu}
         />
       ))}
     </>
@@ -610,6 +628,15 @@ export function Sidebar({
   onCompose: _onCompose,
   onSidebarClose,
   onUnreadFilterClick,
+  onMarkFolderRead,
+  onMarkFolderTreeRead,
+  onMarkAllFoldersRead,
+  onEmptyFolder,
+  onCreateSubfolder,
+  onCreateFolder,
+  onRenameFolder,
+  onDeleteFolder,
+  onRefreshMailboxes,
   className,
 }: SidebarProps) {
   const router = useRouter();
@@ -790,6 +817,23 @@ export function Sidebar({
     router.push('/settings');
   };
 
+  const {
+    contextMenu: mailboxContextMenu,
+    openContextMenu: openMailboxContextMenu,
+    closeContextMenu: closeMailboxContextMenu,
+    menuRef: mailboxMenuRef,
+  } = useContextMenu<MailboxContextTarget>();
+
+  const handleMailboxContextMenu = (e: React.MouseEvent, node: MailboxNode) => {
+    const mailbox = mailboxes.find(mb => mb.id === node.id);
+    if (!mailbox) return;
+    openMailboxContextMenu(e, { kind: "mailbox", mailbox, hasChildren: node.children.length > 0 });
+  };
+
+  const handleFoldersHeaderContextMenu = (e: React.MouseEvent) => {
+    openMailboxContextMenu(e, { kind: "folders-section" });
+  };
+
   return (
     <div
       className={cn(
@@ -866,7 +910,7 @@ export function Sidebar({
           </div>
         )}
 
-        <div>
+        <div onContextMenu={handleFoldersHeaderContextMenu}>
           <SidebarSectionHeader
             label={t("folders")}
             expanded={foldersExpanded}
@@ -894,6 +938,7 @@ export function Sidebar({
                     isCollapsed={isCollapsed}
                     onUnreadFilterClick={onUnreadFilterClick}
                     colorful={colorfulSidebarIcons}
+                    onContextMenu={handleMailboxContextMenu}
                   />
                 ))
               )}
@@ -934,6 +979,7 @@ export function Sidebar({
                           isCollapsed={isCollapsed}
                           onUnreadFilterClick={onUnreadFilterClick}
                           colorful={colorfulSidebarIcons}
+                          onContextMenu={handleMailboxContextMenu}
                         />
                       ))}
                     </div>
@@ -975,6 +1021,23 @@ export function Sidebar({
 
         {!isCollapsed && <PluginSlot name="sidebar-widget" className="border-t border-border" />}
       </div>
+
+      <MailboxContextMenu
+        target={mailboxContextMenu.data}
+        position={mailboxContextMenu.position}
+        isOpen={mailboxContextMenu.isOpen}
+        onClose={closeMailboxContextMenu}
+        menuRef={mailboxMenuRef}
+        onMarkFolderRead={onMarkFolderRead}
+        onMarkFolderTreeRead={onMarkFolderTreeRead}
+        onMarkAllFoldersRead={onMarkAllFoldersRead}
+        onEmptyFolder={onEmptyFolder}
+        onCreateSubfolder={onCreateSubfolder}
+        onCreateFolder={onCreateFolder}
+        onRenameFolder={onRenameFolder}
+        onDeleteFolder={onDeleteFolder}
+        onRefresh={onRefreshMailboxes}
+      />
     </div>
   );
 }

components/providers/intl-provider.tsx

@@ -3,6 +3,7 @@
 import { useEffect, useState } from 'react';
 import { NextIntlClientProvider } from 'next-intl';
 import { useLocaleStore } from '@/stores/locale-store';
+import csMessages from '@/locales/cs/common.json';
 import enMessages from '@/locales/en/common.json';
 import frMessages from '@/locales/fr/common.json';
 import jaMessages from '@/locales/ja/common.json';
@@ -20,6 +21,7 @@ import zhMessages from '@/locales/zh/common.json';
 
 // Pre-loaded translations (loaded at build time, not runtime)
 const ALL_MESSAGES = {
+	cs: csMessages,
   en: enMessages,
   fr: frMessages,
   ja: jaMessages,

components/settings/address-book-management-settings.tsx

@@ -2,13 +2,14 @@
 
 import { useEffect, useState } from "react";
 import { useTranslations } from "next-intl";
-import { Book, Pencil, Share2, Tag } from "lucide-react";
+import { Book, Pencil, Share2, Tag, Users } from "lucide-react";
 import { useContactStore } from "@/stores/contact-store";
 import { useAuthStore } from "@/stores/auth-store";
 import { toast } from "@/stores/toast-store";
 import { SettingsSection } from "./settings-section";
 import { cn } from "@/lib/utils";
-import type { AddressBook } from "@/lib/jmap/types";
+import type { AddressBook, AddressBookRights } from "@/lib/jmap/types";
+import { ShareCollectionDialog } from "./share-collection-dialog";
 
 function AddressBookEditRow({
   initial,
@@ -70,9 +71,10 @@ export function AddressBookManagementSettings() {
   const tContacts = useTranslations("contacts");
   const tSettings = useTranslations("settings.contacts");
   const { client } = useAuthStore();
-  const { addressBooks, contacts, supportsSync, fetchAddressBooks, renameAddressBook, renameKeyword } = useContactStore();
+  const { addressBooks, contacts, supportsSync, fetchAddressBooks, renameAddressBook, shareAddressBook, renameKeyword } = useContactStore();
   const [editingId, setEditingId] = useState<string | null>(null);
   const [editingKeyword, setEditingKeyword] = useState<string | null>(null);
+  const [sharingId, setSharingId] = useState<string | null>(null);
   const [isLoading, setIsLoading] = useState(false);
 
   useEffect(() => {
@@ -148,6 +150,16 @@ export function AddressBookManagementSettings() {
               <Pencil className="w-3.5 h-3.5" />
             </button>
           )}
+          {!book.isShared && book.myRights?.mayShare && (
+            <button
+              type="button"
+              onClick={() => setSharingId(book.id)}
+              className="p-1.5 rounded-md hover:bg-muted text-muted-foreground hover:text-foreground transition-colors"
+              title={t("share")}
+            >
+              <Users className="w-3.5 h-3.5" />
+            </button>
+          )}
         </div>
       </div>
     );
@@ -242,6 +254,24 @@ export function AddressBookManagementSettings() {
         </div>
       </SettingsSection>
     </div>
+
+    {sharingId && client && (() => {
+      const book = addressBooks.find((b) => b.id === sharingId);
+      if (!book) return null;
+      return (
+        <ShareCollectionDialog
+          client={client}
+          kind="addressBook"
+          collectionName={book.name}
+          shareWith={book.shareWith}
+          ownAccountId={client.getAccountId()}
+          onShare={async (principalId, rights) => {
+            await shareAddressBook(client, book, principalId, rights as AddressBookRights | null);
+          }}
+          onClose={() => setSharingId(null)}
+        />
+      );
+    })()}
     </>
   );
 }

components/settings/appearance-settings.tsx

@@ -67,7 +67,7 @@ export function AppearanceSettings() {
   const tAdvanced = useTranslations('settings.advanced');
   const tTour = useTranslations('tour');
   const { theme, setTheme } = useThemeStore();
-  const { fontSize, density, animationsEnabled, senderFavicons, updateSetting } = useSettingsStore();
+  const { fontSize, density, animationsEnabled, senderFavicons, showAvatarsInJunk, updateSetting } = useSettingsStore();
   const { startTour, resetTourCompletion } = useTour();
   const { isSettingLocked, isSettingHidden } = usePolicyStore();
 
@@ -130,6 +130,10 @@ export function AppearanceSettings() {
         <ToggleSwitch checked={senderFavicons} onChange={(checked) => updateSetting('senderFavicons', checked)} />
       </SettingItem>
 
+      <SettingItem label={tAdvanced('show_avatars_in_junk.label')} description={tAdvanced('show_avatars_in_junk.description')}>
+        <ToggleSwitch checked={showAvatarsInJunk} onChange={(checked) => updateSetting('showAvatarsInJunk', checked)} />
+      </SettingItem>
+
       <SettingItem label={tTour('restart_title')} description={tTour('restart_desc')}>
         <Button
           variant="outline"

components/settings/calendar-management-settings.tsx

@@ -7,7 +7,9 @@ import { useAuthStore } from '@/stores/auth-store';
 import { getActiveAccountSlotHeaders } from '@/lib/auth/active-account-slot';
 import { toast } from '@/stores/toast-store';
 import { SettingsSection } from './settings-section';
-import { Plus, Pencil, Trash2, Calendar as CalendarIcon, Copy, Link, Upload, Globe, RefreshCw, Eraser } from 'lucide-react';
+import { Plus, Pencil, Trash2, Calendar as CalendarIcon, Copy, Link, Upload, Globe, RefreshCw, Eraser, Users } from 'lucide-react';
+import { ShareCollectionDialog } from './share-collection-dialog';
+import type { CalendarRights } from '@/lib/jmap/types';
 import { cn, formatDateTime } from '@/lib/utils';
 import { ICalImportModal } from '@/components/calendar/ical-import-modal';
 import { ICalSubscriptionModal } from '@/components/calendar/ical-subscription-modal';
@@ -83,7 +85,7 @@ function CalendarColorPicker({
   );
 }
 
-function CalendarEditForm({
+export function CalendarEditForm({
   initial,
   onSave,
   onCancel,
@@ -153,7 +155,7 @@ export { CalendarColorPicker, CALENDAR_COLORS };
 export function CalendarManagementSettings() {
   const t = useTranslations('calendar.management');
   const { client, serverUrl, username } = useAuthStore();
-  const { calendars, updateCalendar, createCalendar, removeCalendar, clearCalendarEvents, fetchCalendars, icalSubscriptions, removeICalSubscription, refreshICalSubscription, isSubscriptionCalendar } = useCalendarStore();
+  const { calendars, updateCalendar, shareCalendar, createCalendar, removeCalendar, clearCalendarEvents, fetchCalendars, icalSubscriptions, removeICalSubscription, refreshICalSubscription, isSubscriptionCalendar } = useCalendarStore();
 
   const [discoveredCalDavUrls, setDiscoveredCalDavUrls] = useState<Record<string, string | null>>({});
   const [wellKnownCalDavUrl, setWellKnownCalDavUrl] = useState<string | null>(null);
@@ -164,6 +166,7 @@ export function CalendarManagementSettings() {
   const [clearingId, setClearingId] = useState<string | null>(null);
   const [isLoading, setIsLoading] = useState(false);
   const [colorPickerId, setColorPickerId] = useState<string | null>(null);
+  const [sharingId, setSharingId] = useState<string | null>(null);
   const [showImportModal, setShowImportModal] = useState(false);
   const [showSubscriptionModal, setShowSubscriptionModal] = useState(false);
   const [editingSubscription, setEditingSubscription] = useState<typeof icalSubscriptions[0] | null>(null);
@@ -522,6 +525,16 @@ export function CalendarManagementSettings() {
                 >
                   <Pencil className="w-3.5 h-3.5" />
                 </button>
+                {cal.myRights?.mayShare && !cal.isShared && !isSubscriptionCalendar(cal.id) && (
+                  <button
+                    type="button"
+                    onClick={() => setSharingId(cal.id)}
+                    className="p-1.5 rounded-md hover:bg-muted text-muted-foreground hover:text-foreground transition-colors"
+                    title={t('share')}
+                  >
+                    <Users className="w-3.5 h-3.5" />
+                  </button>
+                )}
                 <button
                   type="button"
                   onClick={() => setClearingId(cal.id)}
@@ -689,6 +702,24 @@ export function CalendarManagementSettings() {
           onClose={() => setEditingSubscription(null)}
         />
       )}
+
+      {sharingId && client && (() => {
+        const cal = calendars.find((c) => c.id === sharingId);
+        if (!cal) return null;
+        return (
+          <ShareCollectionDialog
+            client={client}
+            kind="calendar"
+            collectionName={cal.name}
+            shareWith={cal.shareWith}
+            ownAccountId={client.getAccountId()}
+            onShare={async (principalId, rights) => {
+              await shareCalendar(client, cal.id, principalId, rights as CalendarRights | null);
+            }}
+            onClose={() => setSharingId(null)}
+          />
+        );
+      })()}
     </SettingsSection>
   );
 }

components/settings/share-collection-dialog.tsx

@@ -0,0 +1,347 @@
+"use client";
+
+import { useEffect, useMemo, useRef, useState } from "react";
+import { useTranslations } from "next-intl";
+import { Button } from "@/components/ui/button";
+import { X, Loader2, UserPlus, Trash2, Users, ChevronDown } from "lucide-react";
+import type { IJMAPClient } from "@/lib/jmap/client-interface";
+import type { Principal, CalendarRights, AddressBookRights } from "@/lib/jmap/types";
+import { toast } from "@/stores/toast-store";
+
+type ShareKind = "calendar" | "addressBook";
+type AnyRights = CalendarRights | AddressBookRights;
+
+type RolePreset = "freeBusy" | "read" | "readWrite" | "manager" | "custom";
+
+const CALENDAR_PRESETS: Record<Exclude<RolePreset, "custom">, CalendarRights> = {
+  freeBusy: {
+    mayReadFreeBusy: true, mayReadItems: false, mayWriteAll: false, mayWriteOwn: false,
+    mayUpdatePrivate: false, mayRSVP: false, mayShare: false, mayDelete: false,
+  },
+  read: {
+    mayReadFreeBusy: true, mayReadItems: true, mayWriteAll: false, mayWriteOwn: false,
+    mayUpdatePrivate: false, mayRSVP: false, mayShare: false, mayDelete: false,
+  },
+  readWrite: {
+    mayReadFreeBusy: true, mayReadItems: true, mayWriteAll: true, mayWriteOwn: true,
+    mayUpdatePrivate: true, mayRSVP: true, mayShare: false, mayDelete: false,
+  },
+  manager: {
+    mayReadFreeBusy: true, mayReadItems: true, mayWriteAll: true, mayWriteOwn: true,
+    mayUpdatePrivate: true, mayRSVP: true, mayShare: true, mayDelete: true,
+  },
+};
+
+const ADDRESS_BOOK_PRESETS: Record<Exclude<RolePreset, "custom" | "freeBusy">, AddressBookRights> = {
+  read: { mayRead: true, mayWrite: false, mayShare: false, mayDelete: false },
+  readWrite: { mayRead: true, mayWrite: true, mayShare: false, mayDelete: false },
+  manager: { mayRead: true, mayWrite: true, mayShare: true, mayDelete: true },
+};
+
+function detectCalendarPreset(r: CalendarRights): RolePreset {
+  for (const [name, preset] of Object.entries(CALENDAR_PRESETS) as [Exclude<RolePreset, "custom">, CalendarRights][]) {
+    if ((Object.keys(preset) as (keyof CalendarRights)[]).every((k) => preset[k] === r[k])) {
+      return name;
+    }
+  }
+  return "custom";
+}
+
+function detectAddressBookPreset(r: AddressBookRights): RolePreset {
+  for (const [name, preset] of Object.entries(ADDRESS_BOOK_PRESETS) as [Exclude<RolePreset, "custom" | "freeBusy">, AddressBookRights][]) {
+    const keys = Object.keys(preset) as (keyof AddressBookRights)[];
+    if (keys.every((k) => preset[k] === (r[k] ?? false))) {
+      return name;
+    }
+  }
+  return "custom";
+}
+
+interface ShareCollectionDialogProps {
+  client: IJMAPClient;
+  kind: ShareKind;
+  collectionName: string;
+  shareWith: Record<string, AnyRights> | null | undefined;
+  ownAccountId: string;
+  onShare: (principalId: string, rights: AnyRights | null) => Promise<void>;
+  onClose: () => void;
+}
+
+export function ShareCollectionDialog({
+  client,
+  kind,
+  collectionName,
+  shareWith,
+  ownAccountId,
+  onShare,
+  onClose,
+}: ShareCollectionDialogProps) {
+  const t = useTranslations("sharing");
+  const tCommon = useTranslations("common");
+  const modalRef = useRef<HTMLDivElement>(null);
+  const [principals, setPrincipals] = useState<Principal[]>([]);
+  const [loadingPrincipals, setLoadingPrincipals] = useState(true);
+  const [search, setSearch] = useState("");
+  const [savingId, setSavingId] = useState<string | null>(null);
+  const [showAdd, setShowAdd] = useState(false);
+
+  // Load principals on mount
+  useEffect(() => {
+    let cancelled = false;
+    setLoadingPrincipals(true);
+    client.getPrincipals().then((list) => {
+      if (cancelled) return;
+      // Exclude the user themselves and any principal that already has a share
+      const existing = new Set(Object.keys(shareWith || {}));
+      const filtered = list.filter((p) => p.id !== ownAccountId && !existing.has(p.id));
+      setPrincipals(filtered);
+      setLoadingPrincipals(false);
+    }).catch(() => {
+      if (!cancelled) setLoadingPrincipals(false);
+    });
+    return () => { cancelled = true; };
+  }, [client, ownAccountId, shareWith]);
+
+  // Map principal id -> Principal for displayed shares
+  const allPrincipalsById = useMemo(() => {
+    const map = new Map<string, Principal>();
+    for (const p of principals) map.set(p.id, p);
+    return map;
+  }, [principals]);
+
+  // Close on Escape, focus trap, click outside
+  useEffect(() => {
+    const onKey = (e: KeyboardEvent) => {
+      if (e.key === "Escape") onClose();
+    };
+    document.addEventListener("keydown", onKey);
+    return () => document.removeEventListener("keydown", onKey);
+  }, [onClose]);
+
+  const handleSetRights = async (principalId: string, preset: RolePreset) => {
+    if (preset === "custom") return; // custom is read-only here
+    const rights = kind === "calendar"
+      ? CALENDAR_PRESETS[preset as keyof typeof CALENDAR_PRESETS]
+      : ADDRESS_BOOK_PRESETS[preset as keyof typeof ADDRESS_BOOK_PRESETS];
+    if (!rights) return;
+    setSavingId(principalId);
+    try {
+      await onShare(principalId, rights);
+      toast.success(t("share_updated"));
+    } catch (err) {
+      toast.error(err instanceof Error ? err.message : t("share_failed"));
+    } finally {
+      setSavingId(null);
+    }
+  };
+
+  const handleRemove = async (principalId: string) => {
+    setSavingId(principalId);
+    try {
+      await onShare(principalId, null);
+      toast.success(t("share_removed"));
+    } catch (err) {
+      toast.error(err instanceof Error ? err.message : t("share_failed"));
+    } finally {
+      setSavingId(null);
+    }
+  };
+
+  const handleAdd = async (principal: Principal) => {
+    const defaultPreset: RolePreset = "read";
+    const rights = kind === "calendar"
+      ? CALENDAR_PRESETS[defaultPreset]
+      : ADDRESS_BOOK_PRESETS[defaultPreset];
+    setSavingId(principal.id);
+    try {
+      await onShare(principal.id, rights);
+      // Move principal out of the "to add" list
+      setPrincipals((prev) => prev.filter((p) => p.id !== principal.id));
+      setShowAdd(false);
+      setSearch("");
+      toast.success(t("share_added"));
+    } catch (err) {
+      toast.error(err instanceof Error ? err.message : t("share_failed"));
+    } finally {
+      setSavingId(null);
+    }
+  };
+
+  const filteredPrincipals = useMemo(() => {
+    const q = search.trim().toLowerCase();
+    if (!q) return principals;
+    return principals.filter((p) =>
+      p.name.toLowerCase().includes(q) ||
+      p.email?.toLowerCase().includes(q) ||
+      p.description?.toLowerCase().includes(q)
+    );
+  }, [principals, search]);
+
+  const sharedEntries = useMemo(() => {
+    return Object.entries(shareWith || {}) as [string, AnyRights][];
+  }, [shareWith]);
+
+  const presetOptions = kind === "calendar"
+    ? ["freeBusy", "read", "readWrite", "manager"] as const
+    : ["read", "readWrite", "manager"] as const;
+
+  return (
+    <div className="fixed inset-0 z-50 flex items-center justify-center">
+      <div className="absolute inset-0 bg-black/50 backdrop-blur-[1px]" onClick={onClose} aria-hidden="true" />
+      <div
+        ref={modalRef}
+        role="dialog"
+        aria-modal="true"
+        aria-label={t("title", { name: collectionName })}
+        className="relative bg-background border border-border rounded-lg shadow-xl w-full max-w-lg mx-4 animate-in zoom-in-95 duration-200 max-h-[85vh] flex flex-col"
+      >
+        <div className="flex items-center justify-between px-6 py-4 border-b border-border">
+          <div className="flex items-center gap-2">
+            <Users className="w-5 h-5 text-primary" />
+            <h2 className="text-lg font-semibold">{t("title", { name: collectionName })}</h2>
+          </div>
+          <button
+            onClick={onClose}
+            className="p-1.5 rounded-md hover:bg-muted transition-colors duration-150 text-muted-foreground hover:text-foreground"
+            aria-label={tCommon("close")}
+          >
+            <X className="w-5 h-5" />
+          </button>
+        </div>
+
+        <div className="px-6 py-4 space-y-4 overflow-y-auto">
+          <p className="text-sm text-muted-foreground">{t("description")}</p>
+
+          {sharedEntries.length === 0 && !showAdd && (
+            <div className="text-sm text-muted-foreground italic py-4 text-center">
+              {t("no_shares")}
+            </div>
+          )}
+
+          {sharedEntries.length > 0 && (
+            <ul className="divide-y divide-border rounded-md border border-border overflow-hidden">
+              {sharedEntries.map(([principalId, rights]) => {
+                const principal = allPrincipalsById.get(principalId);
+                const preset = kind === "calendar"
+                  ? detectCalendarPreset(rights as CalendarRights)
+                  : detectAddressBookPreset(rights as AddressBookRights);
+                return (
+                  <li key={principalId} className="flex items-center gap-3 px-3 py-2.5">
+                    <div className="flex-1 min-w-0">
+                      <div className="text-sm font-medium truncate">
+                        {principal?.name || principal?.email || principalId}
+                      </div>
+                      {principal?.description && (
+                        <div className="text-xs text-muted-foreground truncate">
+                          {principal.description}
+                        </div>
+                      )}
+                    </div>
+                    <div className="relative">
+                      <select
+                        value={preset}
+                        onChange={(e) => handleSetRights(principalId, e.target.value as RolePreset)}
+                        disabled={savingId === principalId}
+                        className="appearance-none rounded-md border border-input bg-background pl-3 pr-8 py-1.5 text-xs focus:outline-none focus:ring-2 focus:ring-ring disabled:opacity-50"
+                      >
+                        {presetOptions.map((p) => (
+                          <option key={p} value={p}>{t(`preset.${p}`)}</option>
+                        ))}
+                        {preset === "custom" && (
+                          <option value="custom">{t("preset.custom")}</option>
+                        )}
+                      </select>
+                      <ChevronDown className="w-3 h-3 absolute right-2 top-1/2 -translate-y-1/2 pointer-events-none text-muted-foreground" />
+                    </div>
+                    <button
+                      onClick={() => handleRemove(principalId)}
+                      disabled={savingId === principalId}
+                      className="p-1.5 rounded-md hover:bg-destructive/10 text-muted-foreground hover:text-destructive transition-colors disabled:opacity-50"
+                      aria-label={t("remove")}
+                      title={t("remove")}
+                    >
+                      {savingId === principalId
+                        ? <Loader2 className="w-4 h-4 animate-spin" />
+                        : <Trash2 className="w-4 h-4" />}
+                    </button>
+                  </li>
+                );
+              })}
+            </ul>
+          )}
+
+          {!showAdd && (
+            <Button
+              variant="outline"
+              onClick={() => setShowAdd(true)}
+              className="w-full"
+            >
+              <UserPlus className="w-4 h-4 mr-2" />
+              {t("add_person")}
+            </Button>
+          )}
+
+          {showAdd && (
+            <div className="space-y-2 border border-border rounded-md p-3">
+              <input
+                type="text"
+                value={search}
+                onChange={(e) => setSearch(e.target.value)}
+                placeholder={t("search_placeholder")}
+                className="w-full rounded-md border border-input bg-background px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-ring"
+                autoFocus
+              />
+              <div className="max-h-48 overflow-y-auto -mx-1">
+                {loadingPrincipals && (
+                  <div className="flex items-center justify-center py-4 text-muted-foreground">
+                    <Loader2 className="w-4 h-4 animate-spin mr-2" />
+                    {t("loading_principals")}
+                  </div>
+                )}
+                {!loadingPrincipals && filteredPrincipals.length === 0 && (
+                  <div className="text-xs text-muted-foreground text-center py-3">
+                    {search.trim() ? t("no_match") : t("no_principals")}
+                  </div>
+                )}
+                {!loadingPrincipals && filteredPrincipals.map((p) => (
+                  <button
+                    key={p.id}
+                    onClick={() => handleAdd(p)}
+                    disabled={savingId === p.id}
+                    className="w-full text-left px-3 py-2 rounded-md hover:bg-muted disabled:opacity-50 transition-colors"
+                  >
+                    <div className="flex items-center gap-2">
+                      <div className="flex-1 min-w-0">
+                        <div className="text-sm font-medium truncate flex items-center gap-2">
+                          {p.name}
+                          {p.type === "group" && (
+                            <span className="text-[10px] uppercase font-normal text-muted-foreground bg-muted rounded px-1 py-0.5">
+                              {t("group")}
+                            </span>
+                          )}
+                        </div>
+                        {p.email && p.email !== p.name && (
+                          <div className="text-xs text-muted-foreground truncate">{p.email}</div>
+                        )}
+                      </div>
+                      {savingId === p.id && <Loader2 className="w-4 h-4 animate-spin" />}
+                    </div>
+                  </button>
+                ))}
+              </div>
+              <div className="flex justify-end pt-1">
+                <Button variant="ghost" size="sm" onClick={() => { setShowAdd(false); setSearch(""); }}>
+                  {tCommon("cancel")}
+                </Button>
+              </div>
+            </div>
+          )}
+        </div>
+
+        <div className="flex items-center justify-end gap-2 px-6 py-4 border-t border-border">
+          <Button onClick={onClose}>{tCommon("close")}</Button>
+        </div>
+      </div>
+    </div>
+  );
+}

components/ui/avatar.tsx

@@ -140,9 +140,11 @@ interface AvatarProps {
   contactPhotoUri?: string;
   size?: "sm" | "md" | "lg";
   className?: string;
+  /** When true, suppress all image sources (favicons, plugin avatars, profile pics, contact photos) and render initials only. */
+  disableImages?: boolean;
 }
 
-export function Avatar({ name, email, contactPhotoUri, size = "md", className }: AvatarProps) {
+export function Avatar({ name, email, contactPhotoUri, size = "md", className, disableImages = false }: AvatarProps) {
   const [imgError, setImgError] = useState(false);
   const [pluginAvatarUrl, setPluginAvatarUrl] = useState<string | null>(null);
   const [pluginAvatarFailed, setPluginAvatarFailed] = useState(false);
@@ -222,9 +224,11 @@ export function Avatar({ name, email, contactPhotoUri, size = "md", className }:
   // Priority: contact photo > plugin avatar (e.g. Gravatar) > custom avatar > profile picture > company favicon > initials
   const customAvatar = devMode && email ? CUSTOM_AVATARS[email.toLowerCase()] : null;
   const pluginAvatar = pluginAvatarFailed ? null : pluginAvatarUrl;
-  const imgSrc = !imgError && !domainFailed
-    ? resolvedContactPhoto || pluginAvatar || customAvatar || profilePic || (showFavicon ? `/api/favicon?domain=${encodeURIComponent(faviconDomain!)}` : null)
-    : (resolvedContactPhoto || pluginAvatar || customAvatar || profilePic || null);
+  const imgSrc = disableImages
+    ? null
+    : !imgError && !domainFailed
+      ? resolvedContactPhoto || pluginAvatar || customAvatar || profilePic || (showFavicon ? `/api/favicon?domain=${encodeURIComponent(faviconDomain!)}` : null)
+      : (resolvedContactPhoto || pluginAvatar || customAvatar || profilePic || null);
 
   const handleImgError = useCallback(() => {
     // If the plugin avatar just failed, mark it and fall through to the next source

components/ui/flag-icons.tsx

@@ -45,9 +45,22 @@ export function FlagKR(props: FlagProps) {
   return (
     <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 3 2" width={W} height={H} className={flagClass} {...props}>
       <rect width="3" height="2" fill="#fff" />
-      <circle cx="1.5" cy="1" r="0.55" fill="#CD2E3A" />
-      <path d="M1.5,1 a0.275,0.275 0 0,1 0,0.55 a0.275,0.275 0 0,0 0,-0.55" fill="#0047A0" />
-      <path d="M1.5,1 a0.275,0.275 0 0,0 0,-0.55 a0.275,0.275 0 0,1 0,0.55" fill="#0047A0" />
+      <path d="M1.5 0.5 a0.45 0.45 0 1 1 0 0.9 a0.45 0.45 0 1 0 0 -0.9" fill="#CD2E3A" />
+      <path d="M1.5 1.5 a0.45 0.45 0 1 1 0 -0.9 a0.45 0.45 0 1 0 0 0.9" fill="#0047A0" />
+      <circle cx="1.5" cy="0.8" r="0.225" fill="#0047A0" />
+      <circle cx="1.5" cy="1.2" r="0.225" fill="#CD2E3A" />
+      <g stroke="#000" strokeWidth="0.06" strokeLinecap="round">
+        <line x1="0.42" y1="0.35" x2="0.78" y2="0.35" />
+        <line x1="0.42" y1="0.46" x2="0.78" y2="0.46" />
+        <line x1="0.42" y1="0.57" x2="0.78" y2="0.57" />
+        <line x1="2.22" y1="0.35" x2="2.58" y2="0.35" />
+        <line x1="2.22" y1="0.57" x2="2.58" y2="0.57" />
+        <line x1="0.42" y1="1.43" x2="0.78" y2="1.43" />
+        <line x1="0.42" y1="1.65" x2="0.78" y2="1.65" />
+        <line x1="2.22" y1="1.43" x2="2.58" y2="1.43" />
+        <line x1="2.22" y1="1.54" x2="2.58" y2="1.54" />
+        <line x1="2.22" y1="1.65" x2="2.58" y2="1.65" />
+      </g>
     </svg>
   );
 }

components/ui/language-switcher.tsx

@@ -8,6 +8,7 @@ import { cn } from '@/lib/utils';
 import { flagComponents } from './flag-icons';
 
 const languages = [
+	{ value: 'cs', label: 'Česky' },
   { value: 'en', label: 'English' },
   { value: 'fr', label: 'Français' },
   { value: 'ja', label: '日本語' },

components/ui/prompt-dialog.tsx

@@ -0,0 +1,126 @@
+"use client";
+
+import { useEffect, useId, useRef, useState } from "react";
+import { useFocusTrap } from "@/hooks/use-focus-trap";
+import { useTranslations } from "next-intl";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+
+interface PromptDialogProps {
+  isOpen: boolean;
+  onClose: () => void;
+  onSubmit: (value: string) => void;
+  title: string;
+  message?: string;
+  placeholder?: string;
+  defaultValue?: string;
+  confirmText?: string;
+  cancelText?: string;
+}
+
+export function PromptDialog({
+  isOpen,
+  onClose,
+  onSubmit,
+  title,
+  message,
+  placeholder,
+  defaultValue = "",
+  confirmText,
+  cancelText,
+}: PromptDialogProps) {
+  const t = useTranslations("confirm_dialog");
+  const id = useId();
+  const [value, setValue] = useState(defaultValue);
+  const inputRef = useRef<HTMLInputElement>(null);
+
+  const dialogRef = useFocusTrap({
+    isActive: isOpen,
+    onEscape: onClose,
+    restoreFocus: true,
+  });
+
+  useEffect(() => {
+    if (isOpen) {
+      setValue(defaultValue);
+      const t = setTimeout(() => {
+        inputRef.current?.focus();
+        inputRef.current?.select();
+      }, 50);
+      return () => clearTimeout(t);
+    }
+  }, [isOpen, defaultValue]);
+
+  useEffect(() => {
+    if (!isOpen) return;
+
+    const handleBackdropClick = (e: MouseEvent) => {
+      if (dialogRef.current && !dialogRef.current.contains(e.target as Node)) {
+        onClose();
+      }
+    };
+
+    document.addEventListener("mousedown", handleBackdropClick);
+    return () => document.removeEventListener("mousedown", handleBackdropClick);
+  }, [isOpen, onClose, dialogRef]);
+
+  if (!isOpen) return null;
+
+  const resolvedConfirmText = confirmText || t("confirm");
+  const resolvedCancelText = cancelText || t("cancel");
+  const trimmed = value.trim();
+  const canSubmit = trimmed.length > 0;
+
+  const handleSubmit = (e?: React.FormEvent) => {
+    e?.preventDefault();
+    if (!canSubmit) return;
+    try {
+      onSubmit(trimmed);
+    } finally {
+      onClose();
+    }
+  };
+
+  return (
+    <div className="fixed inset-0 bg-black/50 backdrop-blur-[1px] flex items-center justify-center z-[60] p-4 animate-in fade-in duration-150">
+      <div
+        ref={dialogRef}
+        role="dialog"
+        aria-modal="true"
+        aria-labelledby={`${id}-title`}
+        className="bg-background border border-border rounded-lg shadow-xl w-full max-w-md animate-in zoom-in-95 duration-200"
+      >
+        <form onSubmit={handleSubmit}>
+          <div className="p-6">
+            <h2
+              id={`${id}-title`}
+              className="text-lg font-semibold text-foreground"
+            >
+              {title}
+            </h2>
+            {message && (
+              <p className="mt-2 text-sm text-muted-foreground">{message}</p>
+            )}
+            <Input
+              ref={inputRef}
+              type="text"
+              value={value}
+              onChange={(e) => setValue(e.target.value)}
+              placeholder={placeholder}
+              className="mt-4"
+            />
+          </div>
+
+          <div className="flex items-center justify-end gap-3 px-6 pb-6">
+            <Button type="button" variant="outline" onClick={onClose}>
+              {resolvedCancelText}
+            </Button>
+            <Button type="submit" variant="default" disabled={!canSubmit}>
+              {resolvedConfirmText}
+            </Button>
+          </div>
+        </form>
+      </div>
+    </div>
+  );
+}

hooks/use-mailbox-drop.ts

@@ -31,7 +31,7 @@ interface UseMailboxDropReturn {
 export function useMailboxDrop({ mailbox, onDropComplete, onSuccess, onError }: UseMailboxDropOptions): UseMailboxDropReturn {
   const [isOver, setIsOver] = useState(false);
   const { client } = useAuthStore();
-  const { moveEmailsToMailbox, selectedEmailIds, clearSelection, fetchEmails, selectedMailbox, mailboxes } = useEmailStore();
+  const { moveEmailsToMailbox, selectedEmailIds, clearSelection, refreshCurrentMailbox, mailboxes } = useEmailStore();
   const { isDragging, sourceMailboxId, draggedEmails, endDrag } = useDragDropContext();
 
   // Determine if this is a valid drop target
@@ -115,8 +115,8 @@ export function useMailboxDrop({ mailbox, onDropComplete, onSuccess, onError }:
         clearSelection();
       }
 
-      // Refresh the current mailbox view
-      await fetchEmails(client, selectedMailbox);
+      // Refresh the current mailbox view (honors active search/filters)
+      await refreshCurrentMailbox(client);
 
       const mailboxPath = getMailboxPath(mailbox, mailboxes);
 
@@ -144,7 +144,7 @@ export function useMailboxDrop({ mailbox, onDropComplete, onSuccess, onError }:
     } finally {
       endDrag();
     }
-  }, [client, mailbox, mailboxes, isValidTarget, moveEmailsToMailbox, selectedEmailIds, clearSelection, fetchEmails, selectedMailbox, endDrag, onDropComplete, onSuccess, onError]);
+  }, [client, mailbox, mailboxes, isValidTarget, moveEmailsToMailbox, selectedEmailIds, clearSelection, refreshCurrentMailbox, endDrag, onDropComplete, onSuccess, onError]);
 
   const valid = isValidTarget();
 

hooks/use-prompt-dialog.ts

@@ -0,0 +1,87 @@
+import { useState, useCallback, useRef, useEffect } from "react";
+
+interface PromptDialogState {
+  isOpen: boolean;
+  title: string;
+  message?: string;
+  placeholder?: string;
+  defaultValue: string;
+  confirmText?: string;
+  cancelText?: string;
+  onSubmit: (value: string) => void;
+}
+
+const INITIAL_STATE: PromptDialogState = {
+  isOpen: false,
+  title: "",
+  defaultValue: "",
+  onSubmit: () => {},
+};
+
+interface PromptOptions {
+  title: string;
+  message?: string;
+  placeholder?: string;
+  defaultValue?: string;
+  confirmText?: string;
+  cancelText?: string;
+}
+
+export function usePromptDialog() {
+  const [state, setState] = useState<PromptDialogState>(INITIAL_STATE);
+  const resolveRef = useRef<((value: string | null) => void) | null>(null);
+
+  useEffect(() => {
+    return () => {
+      if (resolveRef.current) {
+        resolveRef.current(null);
+        resolveRef.current = null;
+      }
+    };
+  }, []);
+
+  const prompt = useCallback(
+    (options: PromptOptions): Promise<string | null> => {
+      return new Promise((resolve) => {
+        resolveRef.current = resolve;
+        setState({
+          isOpen: true,
+          title: options.title,
+          message: options.message,
+          placeholder: options.placeholder,
+          defaultValue: options.defaultValue ?? "",
+          confirmText: options.confirmText,
+          cancelText: options.cancelText,
+          onSubmit: (value) => {
+            resolveRef.current = null;
+            resolve(value);
+          },
+        });
+      });
+    },
+    []
+  );
+
+  const close = useCallback(() => {
+    if (resolveRef.current) {
+      resolveRef.current(null);
+      resolveRef.current = null;
+    }
+    setState(INITIAL_STATE);
+  }, []);
+
+  return {
+    dialogProps: {
+      isOpen: state.isOpen,
+      onClose: close,
+      onSubmit: state.onSubmit,
+      title: state.title,
+      message: state.message,
+      placeholder: state.placeholder,
+      defaultValue: state.defaultValue,
+      confirmText: state.confirmText,
+      cancelText: state.cancelText,
+    },
+    prompt,
+  };
+}

i18n/request.ts

@@ -11,6 +11,9 @@ export default getRequestConfig(async ({ requestLocale }) => {
   // Use static imports for better compatibility
   let messages;
   switch (locale) {
+    case 'cs':
+      messages = (await import('../locales/cs/common.json')).default;
+      break;
     case 'fr':
       messages = (await import('../locales/fr/common.json')).default;
       break;

i18n/routing.ts

@@ -13,7 +13,7 @@ const localePrefix = (process.env.NEXT_PUBLIC_LOCALE_PREFIX ?? 'never') as
   | 'as-needed';
 
 export const routing = defineRouting({
-  locales: ['en', 'fr', 'de', 'es', 'it', 'ja', 'ko', 'lv', 'nl', 'pl', 'pt', 'ru', 'uk', 'zh'],
+  locales: ['cs', 'en', 'fr', 'de', 'es', 'it', 'ja', 'ko', 'lv', 'nl', 'pl', 'pt', 'ru', 'uk', 'zh'],
   defaultLocale: 'en',
   localePrefix
 });

lib/__tests__/calendar-alerts.test.ts

@@ -82,7 +82,7 @@ function makeCalendar(overrides: Partial<Calendar> = {}): Calendar {
       mayWriteOwn: true,
       mayUpdatePrivate: true,
       mayRSVP: true,
-      mayAdmin: false,
+      mayShare: false,
       mayDelete: false,
     },
     ...overrides,

lib/__tests__/csp-frame-origins.test.ts

@@ -0,0 +1,104 @@
+import { describe, expect, it } from 'vitest';
+import {
+  isValidFrameOrigin,
+  sanitizeFrameOrigins,
+} from '@/lib/admin/csp-frame-origins';
+
+describe('isValidFrameOrigin', () => {
+  it('accepts plain https origins', () => {
+    expect(isValidFrameOrigin('https://www.youtube-nocookie.com')).toBe(true);
+    expect(isValidFrameOrigin('https://meet.example.com')).toBe(true);
+    expect(isValidFrameOrigin('https://a.b.c.example.com')).toBe(true);
+  });
+
+  it('accepts a wildcard subdomain', () => {
+    expect(isValidFrameOrigin('https://*.example.com')).toBe(true);
+    expect(isValidFrameOrigin('https://*.youtube.com')).toBe(true);
+  });
+
+  it('accepts an explicit port', () => {
+    expect(isValidFrameOrigin('https://meet.example.com:8443')).toBe(true);
+    expect(isValidFrameOrigin('https://*.example.com:443')).toBe(true);
+  });
+
+  it('rejects non-https schemes', () => {
+    expect(isValidFrameOrigin('http://example.com')).toBe(false);
+    expect(isValidFrameOrigin('ftp://example.com')).toBe(false);
+    expect(isValidFrameOrigin('data:text/html,foo')).toBe(false);
+    expect(isValidFrameOrigin('javascript:alert(1)')).toBe(false);
+  });
+
+  it('rejects bare schemes and wildcard hosts', () => {
+    expect(isValidFrameOrigin('https://')).toBe(false);
+    expect(isValidFrameOrigin('https://*')).toBe(false);
+    expect(isValidFrameOrigin('https://*.com')).toBe(false);
+    expect(isValidFrameOrigin('https://localhost')).toBe(false);
+  });
+
+  it('rejects paths, queries, and fragments', () => {
+    expect(isValidFrameOrigin('https://example.com/embed')).toBe(false);
+    expect(isValidFrameOrigin('https://example.com/')).toBe(false);
+    expect(isValidFrameOrigin('https://example.com?x=1')).toBe(false);
+    expect(isValidFrameOrigin('https://example.com#x')).toBe(false);
+  });
+
+  it('rejects userinfo, IPs, and IPv6', () => {
+    expect(isValidFrameOrigin('https://user:pass@example.com')).toBe(false);
+    expect(isValidFrameOrigin('https://1.2.3.4')).toBe(false);
+    expect(isValidFrameOrigin('https://[::1]')).toBe(false);
+  });
+
+  it('rejects values that try to break out of the directive', () => {
+    expect(isValidFrameOrigin("https://example.com'; script-src 'unsafe-eval")).toBe(false);
+    expect(isValidFrameOrigin('https://example.com" data:')).toBe(false);
+    expect(isValidFrameOrigin('https://example.com data:')).toBe(false);
+    expect(isValidFrameOrigin('https://example.com\nhttps://evil.com')).toBe(false);
+    expect(isValidFrameOrigin('https://example.com;https://evil.com')).toBe(false);
+    expect(isValidFrameOrigin('https://exa,mple.com')).toBe(false);
+  });
+
+  it('rejects non-strings and obvious garbage', () => {
+    expect(isValidFrameOrigin(undefined)).toBe(false);
+    expect(isValidFrameOrigin(null)).toBe(false);
+    expect(isValidFrameOrigin(42)).toBe(false);
+    expect(isValidFrameOrigin('')).toBe(false);
+    expect(isValidFrameOrigin('not-a-url')).toBe(false);
+    expect(isValidFrameOrigin('a'.repeat(300))).toBe(false);
+  });
+});
+
+describe('sanitizeFrameOrigins', () => {
+  it('returns empty for non-array input', () => {
+    expect(sanitizeFrameOrigins(undefined)).toEqual([]);
+    expect(sanitizeFrameOrigins(null)).toEqual([]);
+    expect(sanitizeFrameOrigins('https://example.com')).toEqual([]);
+    expect(sanitizeFrameOrigins({})).toEqual([]);
+  });
+
+  it('keeps valid entries and drops invalid ones silently', () => {
+    expect(
+      sanitizeFrameOrigins([
+        'https://www.youtube-nocookie.com',
+        'http://insecure.com',
+        'https://meet.example.com:8443',
+        'https://example.com/path',
+        42,
+        'https://*.vimeo.com',
+      ]),
+    ).toEqual([
+      'https://www.youtube-nocookie.com',
+      'https://meet.example.com:8443',
+      'https://*.vimeo.com',
+    ]);
+  });
+
+  it('dedupes case-insensitively', () => {
+    expect(
+      sanitizeFrameOrigins([
+        'https://Example.com',
+        'https://example.com',
+        'https://EXAMPLE.com',
+      ]),
+    ).toEqual(['https://Example.com']);
+  });
+});

lib/__tests__/plugin-store.test.ts

@@ -47,6 +47,8 @@ function resetStore() {
       'email-banner': [],
       'email-footer': [],
       'composer-toolbar': [],
+      'composer-sidebar': [],
+      'composer-sidebar-right': [],
       'sidebar-widget': [],
       'email-detail-sidebar': [],
       'settings-section': [],

lib/__tests__/vcard.test.ts

@@ -34,11 +34,11 @@ describe("parseVCard", () => {
     expect(result).toHaveLength(1);
     const components = result[0].name?.components || [];
     expect(components).toEqual([
-      { kind: "prefix", value: "Mr." },
+      { kind: "title", value: "Mr." },
       { kind: "given", value: "John" },
-      { kind: "additional", value: "Michael" },
+      { kind: "given2", value: "Michael" },
       { kind: "surname", value: "Doe" },
-      { kind: "suffix", value: "Jr." },
+      { kind: "generation", value: "Jr." },
     ]);
   });
 
@@ -52,6 +52,21 @@ describe("parseVCard", () => {
     expect(components.find((c) => c.kind === "surname")?.value).toBe("Doe");
   });
 
+  it("maps prefix and middle name to RFC 9553 standard kinds (issue #224)", () => {
+    // N: family;given;additional;prefix;suffix (RFC 6350 order)
+    const withPrefix = parseVCard(`BEGIN:VCARD\r\nVERSION:3.0\r\nN:Smith;John;;Mr.;\r\nEMAIL:j@example.com\r\nEND:VCARD`);
+    const c1 = withPrefix[0].name?.components || [];
+    expect(c1.find((c) => c.kind === "surname")?.value).toBe("Smith");
+    expect(c1.find((c) => c.kind === "given")?.value).toBe("John");
+    expect(c1.find((c) => c.kind === "title")?.value).toBe("Mr.");
+
+    const withMiddle = parseVCard(`BEGIN:VCARD\r\nVERSION:3.0\r\nN:Smith;John;Mike;;\r\nEMAIL:j@example.com\r\nEND:VCARD`);
+    const c2 = withMiddle[0].name?.components || [];
+    expect(c2.find((c) => c.kind === "surname")?.value).toBe("Smith");
+    expect(c2.find((c) => c.kind === "given")?.value).toBe("John");
+    expect(c2.find((c) => c.kind === "given2")?.value).toBe("Mike");
+  });
+
   it("parses vCard with phone, org, and address", () => {
     const vcf = [
       "BEGIN:VCARD",
@@ -204,6 +219,60 @@ describe("parseVCard", () => {
     expect(result[0].kind).toBe("group");
   });
 
+  it("decodes ENCODING=QUOTED-PRINTABLE values with UTF-8 charset", () => {
+    const vcf = [
+      "BEGIN:VCARD",
+      "VERSION:2.1",
+      "N;CHARSET=UTF-8;ENCODING=QUOTED-PRINTABLE:M=C3=BCller;Hans;;;",
+      "FN;CHARSET=UTF-8;ENCODING=QUOTED-PRINTABLE:Hans M=C3=BCller",
+      "NOTE;CHARSET=UTF-8;ENCODING=QUOTED-PRINTABLE:Caf=C3=A9 stra=C3=9Fe",
+      "EMAIL:hans@example.com",
+      "END:VCARD",
+    ].join("\r\n");
+
+    const result = parseVCard(vcf);
+    expect(result).toHaveLength(1);
+    const card = result[0];
+
+    const components = card.name?.components || [];
+    expect(components.find((c) => c.kind === "given")?.value).toBe("Hans");
+    expect(components.find((c) => c.kind === "surname")?.value).toBe("Müller");
+    expect(card.notes?.n0?.note).toBe("Café straße");
+  });
+
+  it("joins QUOTED-PRINTABLE soft line breaks (= at end of line)", () => {
+    const vcf = [
+      "BEGIN:VCARD",
+      "VERSION:2.1",
+      "FN;CHARSET=UTF-8;ENCODING=QUOTED-PRINTABLE:Hans=20J=",
+      "=C3=BCrgen=20M=C3=BCller",
+      "EMAIL:hj@example.com",
+      "END:VCARD",
+    ].join("\r\n");
+
+    const result = parseVCard(vcf);
+    expect(result).toHaveLength(1);
+    const components = result[0].name?.components || [];
+    const given = components.find((c) => c.kind === "given")?.value;
+    const surname = components.find((c) => c.kind === "surname")?.value;
+    expect(given).toBe("Hans");
+    expect(surname).toBe("Jürgen Müller");
+  });
+
+  it("recognizes bare QUOTED-PRINTABLE encoding parameter (vCard 2.1 style)", () => {
+    const vcf = [
+      "BEGIN:VCARD",
+      "VERSION:2.1",
+      "FN;QUOTED-PRINTABLE;CHARSET=UTF-8:Caf=C3=A9",
+      "EMAIL:c@example.com",
+      "END:VCARD",
+    ].join("\r\n");
+
+    const result = parseVCard(vcf);
+    const components = result[0].name?.components || [];
+    expect(components.find((c) => c.kind === "given")?.value).toBe("Café");
+  });
+
   it("parses GENDER, LOGO, SOUND, LABEL, CALURI, CALADRURI, FBURL, SOURCE", () => {
     const vcf = [
       "BEGIN:VCARD",

lib/admin/config-manager.ts

@@ -2,6 +2,7 @@ import { readFile, writeFile, mkdir, rename } from 'node:fs/promises';
 import { existsSync } from 'node:fs';
 import path from 'node:path';
 import { logger } from '@/lib/logger';
+import { readFileEnv } from '@/lib/read-file-env';
 import { CONFIG_ENV_MAP, DEFAULT_POLICY, DEFAULT_THEME_POLICY, type SettingsPolicy } from './types';
 
 function getAdminDir(): string {
@@ -64,6 +65,12 @@ class ConfigManager {
       if (envVal !== undefined) {
         return parseEnvValue(envVal, mapping.type) as T;
       }
+      if (mapping.fileEnvVar) {
+        const fileVal = readFileEnv(process.env[mapping.fileEnvVar]);
+        if (fileVal !== null) {
+          return parseEnvValue(fileVal, mapping.type) as T;
+        }
+      }
       if (defaultValue !== undefined) return defaultValue;
       return mapping.defaultValue as T;
     }
@@ -94,9 +101,16 @@ class ConfigManager {
         const envVal = process.env[mapping.envVar];
         if (envVal !== undefined) {
           result[key] = { value: parseEnvValue(envVal, mapping.type), source: 'env' };
-        } else {
-          result[key] = { value: mapping.defaultValue, source: 'default' };
+          continue;
         }
+        if (mapping.fileEnvVar) {
+          const fileVal = readFileEnv(process.env[mapping.fileEnvVar]);
+          if (fileVal !== null) {
+            result[key] = { value: parseEnvValue(fileVal, mapping.type), source: 'env' };
+            continue;
+          }
+        }
+        result[key] = { value: mapping.defaultValue, source: 'default' };
       }
     }
     return result;

lib/admin/csp-frame-origins.ts

@@ -0,0 +1,102 @@
+/**
+ * Computes the union of CSP `frame-src` origins declared by installed and
+ * enabled plugins. The proxy reads this on each request so that plugins can
+ * embed external content (YouTube, Vimeo, Jitsi, …) without us hard-coding
+ * domains in the host CSP.
+ *
+ * Origins are validated at install time and re-validated here as defense in
+ * depth — any malformed value is dropped so a corrupted registry can never
+ * inject arbitrary CSP fragments.
+ */
+
+import { getPluginRegistry } from './plugin-registry';
+
+// `https://host`, `https://host:port`, or `https://*.host[:port]`
+//
+// Each label is alphanumeric with optional inner dashes; the final TLD label
+// MUST start with a letter so we reject raw IPv4 literals.
+//
+// Disallowed by the regex (intentionally):
+//   - any scheme other than https
+//   - paths, queries, fragments
+//   - userinfo, IPv4 literals, IPv6 literals (`[::1]`)
+//   - bare wildcards (`https://*`)
+const FRAME_ORIGIN_RE =
+  /^https:\/\/(?:\*\.)?(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?)(?:\.(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?))*\.(?:[a-z](?:[a-z0-9-]*[a-z0-9])?)(?::[0-9]{1,5})?$/i;
+
+export function isValidFrameOrigin(origin: unknown): origin is string {
+  if (typeof origin !== 'string') return false;
+  if (origin.length > 200) return false;
+  if (!FRAME_ORIGIN_RE.test(origin)) return false;
+  // Reject control characters / whitespace as a final safeguard against
+  // anything that would let an attacker break out of the directive.
+  if (/[\s'"`;,()]/.test(origin)) return false;
+  return true;
+}
+
+/**
+ * Sanitises a list of candidate origins from a manifest. Drops invalid
+ * entries silently and dedupes (case-insensitive on the host).
+ */
+export function sanitizeFrameOrigins(input: unknown): string[] {
+  if (!Array.isArray(input)) return [];
+  const seen = new Set<string>();
+  const out: string[] = [];
+  for (const value of input) {
+    if (!isValidFrameOrigin(value)) continue;
+    const key = value.toLowerCase();
+    if (seen.has(key)) continue;
+    seen.add(key);
+    out.push(value);
+  }
+  return out;
+}
+
+// In-memory cache. The proxy fires on every page navigation; reading the
+// registry JSON every time is fine but cheap to skip when nothing has
+// changed. Five seconds is short enough to make plugin install/uninstall
+// feel snappy without measurable overhead.
+let cachedAt = 0;
+let cachedOrigins: string[] = [];
+const CACHE_TTL_MS = 5_000;
+
+/**
+ * Returns the union of frame origins declared by every enabled plugin in
+ * the server-side registry, deduped and validated.
+ *
+ * Returns an empty array on any failure (missing file, parse error, …) so
+ * a broken registry only ever shrinks the CSP — never widens it.
+ */
+export async function getEnabledPluginFrameOrigins(): Promise<string[]> {
+  const now = Date.now();
+  if (now - cachedAt < CACHE_TTL_MS) return cachedOrigins;
+
+  try {
+    const registry = await getPluginRegistry();
+    const seen = new Set<string>();
+    const out: string[] = [];
+    for (const plugin of registry.plugins) {
+      if (!plugin.enabled) continue;
+      const origins = sanitizeFrameOrigins(plugin.frameOrigins);
+      for (const o of origins) {
+        const key = o.toLowerCase();
+        if (seen.has(key)) continue;
+        seen.add(key);
+        out.push(o);
+      }
+    }
+    cachedOrigins = out;
+    cachedAt = now;
+    return out;
+  } catch {
+    cachedOrigins = [];
+    cachedAt = now;
+    return [];
+  }
+}
+
+/** Force the next call to re-read the registry. Used by install/uninstall. */
+export function invalidateFrameOriginsCache(): void {
+  cachedAt = 0;
+  cachedOrigins = [];
+}

lib/admin/plugin-registry.ts

@@ -41,6 +41,11 @@ export interface ServerPlugin {
   configSchema?: Record<string, PluginConfigField>;
   installedAt: string;
   updatedAt: string;
+  /**
+   * Validated CSP origins (https-only, single-origin form) the plugin may
+   * embed. Merged into the host frame-src by the proxy.
+   */
+  frameOrigins?: string[];
 }
 
 export interface ServerTheme {

lib/admin/types.ts

@@ -106,7 +106,7 @@ export interface AuditEntry {
 }
 
 /** Config keys that map to environment variables */
-export const CONFIG_ENV_MAP: Record<string, { envVar: string; type: 'string' | 'boolean' | 'url' | 'enum'; defaultValue: unknown; enumValues?: string[] }> = {
+export const CONFIG_ENV_MAP: Record<string, { envVar: string; fileEnvVar?: string; type: 'string' | 'boolean' | 'url' | 'enum'; defaultValue: unknown; enumValues?: string[] }> = {
   appName: { envVar: 'APP_NAME', type: 'string', defaultValue: 'Webmail' },
   jmapServerUrl: { envVar: 'JMAP_SERVER_URL', type: 'url', defaultValue: '' },
   stalwartFeaturesEnabled: { envVar: 'STALWART_FEATURES', type: 'boolean', defaultValue: true },
@@ -124,7 +124,7 @@ export const CONFIG_ENV_MAP: Record<string, { envVar: string; type: 'string' | '
   oauthEnabled: { envVar: 'OAUTH_ENABLED', type: 'boolean', defaultValue: false },
   oauthOnly: { envVar: 'OAUTH_ONLY', type: 'boolean', defaultValue: false },
   oauthClientId: { envVar: 'OAUTH_CLIENT_ID', type: 'string', defaultValue: '' },
-  oauthClientSecret: { envVar: 'OAUTH_CLIENT_SECRET', type: 'string', defaultValue: '' },
+  oauthClientSecret: { envVar: 'OAUTH_CLIENT_SECRET', fileEnvVar: 'OAUTH_CLIENT_SECRET_FILE', type: 'string', defaultValue: '' },
   oauthIssuerUrl: { envVar: 'OAUTH_ISSUER_URL', type: 'url', defaultValue: '' },
   allowCustomJmapEndpoint: { envVar: 'ALLOW_CUSTOM_JMAP_ENDPOINT', type: 'boolean', defaultValue: false },
   autoSsoEnabled: { envVar: 'AUTO_SSO_ENABLED', type: 'boolean', defaultValue: false },
@@ -134,7 +134,7 @@ export const CONFIG_ENV_MAP: Record<string, { envVar: string; type: 'string' | '
   settingsSyncEnabled: { envVar: 'SETTINGS_SYNC_ENABLED', type: 'boolean', defaultValue: false },
   logFormat: { envVar: 'LOG_FORMAT', type: 'enum', defaultValue: 'text', enumValues: ['text', 'json'] },
   logLevel: { envVar: 'LOG_LEVEL', type: 'enum', defaultValue: 'info', enumValues: ['error', 'warn', 'info', 'debug'] },
-  sessionSecret: { envVar: 'SESSION_SECRET', type: 'string', defaultValue: '' },
+  sessionSecret: { envVar: 'SESSION_SECRET', fileEnvVar: 'SESSION_SECRET_FILE', type: 'string', defaultValue: '' },
 };
 
 /** Keys that should never be exposed to the client config endpoint */

lib/birthday-calendar.ts

@@ -30,7 +30,7 @@ export function createBirthdayCalendar(name?: string, color?: string): Calendar
       mayWriteOwn: false,
       mayUpdatePrivate: false,
       mayRSVP: false,
-      mayAdmin: false,
+      mayShare: false,
       mayDelete: false,
     },
   };

lib/demo/demo-client.ts

@@ -78,6 +78,10 @@ export class DemoJMAPClient implements IJMAPClient {
   supportsCalendars(): boolean { return true; }
   supportsSieve(): boolean { return true; }
   supportsFiles(): boolean { return true; }
+  supportsPrincipals(): boolean { return false; }
+  async getPrincipals(): Promise<never[]> { return []; }
+  async setCalendarShare(): Promise<void> { /* demo: no-op */ }
+  async setAddressBookShare(): Promise<void> { /* demo: no-op */ }
 
   // ── Push / state ──────────────────────────────────────────────
 
@@ -312,6 +316,33 @@ export class DemoJMAPClient implements IJMAPClient {
     return removed;
   }
 
+  async markMailboxAsRead(mailboxId: string): Promise<number> {
+    let count = 0;
+    for (const email of this.data.emails) {
+      if (email.mailboxIds[mailboxId] && email.keywords.$seen !== true) {
+        email.keywords.$seen = true;
+        count++;
+      }
+    }
+    this.recalcMailboxCounts();
+    return count;
+  }
+
+  async markAllAsRead(excludeMailboxIds: string[] = []): Promise<number> {
+    const excluded = new Set(excludeMailboxIds);
+    let count = 0;
+    for (const email of this.data.emails) {
+      if (email.keywords.$seen === true) continue;
+      const mbIds = Object.keys(email.mailboxIds);
+      const onlyInExcluded = mbIds.length > 0 && mbIds.every(id => excluded.has(id));
+      if (onlyInExcluded) continue;
+      email.keywords.$seen = true;
+      count++;
+    }
+    this.recalcMailboxCounts();
+    return count;
+  }
+
   async markAsSpam(emailId: string): Promise<void> {
     const email = this.data.emails.find(e => e.id === emailId);
     const junkMb = this.data.mailboxes.find(m => m.role === 'junk');
@@ -525,6 +556,11 @@ export class DemoJMAPClient implements IJMAPClient {
     if (book) Object.assign(book, updates);
   }
 
+  async deleteAddressBook(addressBookId: string): Promise<void> {
+    this.data.addressBooks = this.data.addressBooks.filter(b => b.id !== addressBookId);
+    this.data.contacts = this.data.contacts.filter(c => !c.addressBookIds?.[addressBookId]);
+  }
+
   async getContacts(addressBookId?: string): Promise<ContactCard[]> {
     if (addressBookId) return this.data.contacts.filter(c => c.addressBookIds[addressBookId]);
     return [...this.data.contacts];
@@ -582,7 +618,7 @@ export class DemoJMAPClient implements IJMAPClient {
       includeInAvailability: 'all',
       defaultAlertsWithTime: null, defaultAlertsWithoutTime: null,
       timeZone: null, shareWith: null,
-      myRights: { mayReadFreeBusy: true, mayReadItems: true, mayWriteAll: true, mayWriteOwn: true, mayUpdatePrivate: true, mayRSVP: true, mayAdmin: true, mayDelete: true },
+      myRights: { mayReadFreeBusy: true, mayReadItems: true, mayWriteAll: true, mayWriteOwn: true, mayUpdatePrivate: true, mayRSVP: true, mayShare: true, mayDelete: true },
       ...calendar,
     } as Calendar;
     this.data.calendars.push(full);

lib/demo/fixtures/calendars.ts

@@ -17,7 +17,7 @@ export function createDemoCalendars(): Calendar[] {
       defaultAlertsWithoutTime: null,
       timeZone: null,
       shareWith: null,
-      myRights: { mayReadFreeBusy: true, mayReadItems: true, mayWriteAll: true, mayWriteOwn: true, mayUpdatePrivate: true, mayRSVP: true, mayAdmin: true, mayDelete: false },
+      myRights: { mayReadFreeBusy: true, mayReadItems: true, mayWriteAll: true, mayWriteOwn: true, mayUpdatePrivate: true, mayRSVP: true, mayShare: true, mayDelete: false },
     },
     {
       id: 'demo-calendar-work',
@@ -33,7 +33,7 @@ export function createDemoCalendars(): Calendar[] {
       defaultAlertsWithoutTime: null,
       timeZone: null,
       shareWith: null,
-      myRights: { mayReadFreeBusy: true, mayReadItems: true, mayWriteAll: true, mayWriteOwn: true, mayUpdatePrivate: true, mayRSVP: true, mayAdmin: true, mayDelete: true },
+      myRights: { mayReadFreeBusy: true, mayReadItems: true, mayWriteAll: true, mayWriteOwn: true, mayUpdatePrivate: true, mayRSVP: true, mayShare: true, mayDelete: true },
     },
     {
       id: 'demo-calendar-birthdays',
@@ -49,7 +49,7 @@ export function createDemoCalendars(): Calendar[] {
       defaultAlertsWithoutTime: null,
       timeZone: null,
       shareWith: null,
-      myRights: { mayReadFreeBusy: true, mayReadItems: true, mayWriteAll: true, mayWriteOwn: true, mayUpdatePrivate: true, mayRSVP: true, mayAdmin: true, mayDelete: true },
+      myRights: { mayReadFreeBusy: true, mayReadItems: true, mayWriteAll: true, mayWriteOwn: true, mayUpdatePrivate: true, mayRSVP: true, mayShare: true, mayDelete: true },
     },
   ];
 }

lib/jmap/client-interface.ts

@@ -1,4 +1,4 @@
-import type { Email, Mailbox, StateChange, AccountStates, Thread, Identity, EmailAddress, ContactCard, AddressBook, VacationResponse, Calendar, CalendarEvent, CalendarEventFilter, CalendarTask, FileNode } from "./types";
+import type { Email, Mailbox, StateChange, AccountStates, Thread, Identity, EmailAddress, ContactCard, AddressBook, AddressBookRights, VacationResponse, Calendar, CalendarRights, CalendarEvent, CalendarEventFilter, CalendarTask, FileNode, Principal } from "./types";
 import type { SieveScript, SieveCapabilities } from "./sieve-types";
 
 /**
@@ -94,6 +94,8 @@ export interface IJMAPClient {
   ): Promise<void>;
   moveEmail(emailId: string, toMailboxId: string, accountId?: string): Promise<void>;
   emptyMailbox(mailboxId: string): Promise<number>;
+  markMailboxAsRead(mailboxId: string, accountId?: string): Promise<number>;
+  markAllAsRead(excludeMailboxIds?: string[], accountId?: string): Promise<number>;
   markAsSpam(emailId: string, accountId?: string): Promise<void>;
   undoSpam(emailId: string, originalMailboxId: string, accountId?: string): Promise<void>;
 
@@ -188,6 +190,7 @@ export interface IJMAPClient {
   getAllAddressBooks(): Promise<AddressBook[]>;
   createAddressBook(name: string): Promise<AddressBook>;
   updateAddressBook(addressBookId: string, updates: Partial<AddressBook>, targetAccountId?: string): Promise<void>;
+  deleteAddressBook(addressBookId: string, targetAccountId?: string): Promise<void>;
   getContacts(addressBookId?: string): Promise<ContactCard[]>;
   getAllContacts(): Promise<ContactCard[]>;
   getContact(contactId: string, accountId?: string): Promise<ContactCard | null>;
@@ -225,6 +228,12 @@ export interface IJMAPClient {
   updateCalendarTask(taskId: string, updates: Partial<CalendarTask>, targetAccountId?: string): Promise<void>;
   deleteCalendarTask(taskId: string, targetAccountId?: string): Promise<void>;
 
+  // ── Sharing (RFC 9670 Principals) ─────────────────────────────
+  supportsPrincipals(): boolean;
+  getPrincipals(targetAccountId?: string): Promise<Principal[]>;
+  setCalendarShare(calendarId: string, principalId: string, rights: CalendarRights | null, targetAccountId?: string): Promise<void>;
+  setAddressBookShare(addressBookId: string, principalId: string, rights: AddressBookRights | null, targetAccountId?: string): Promise<void>;
+
   // ── Sieve / Filters ──────────────────────────────────────────
   getSieveAccountId(): string;
   getSieveCapabilities(): SieveCapabilities | null;

lib/jmap/client.ts

@@ -1,4 +1,4 @@
-import type { Email, Mailbox, StateChange, AccountStates, Thread, Identity, EmailAddress, ContactCard, AddressBook, VacationResponse, Calendar, CalendarEvent, CalendarEventFilter, CalendarTask, FileNode, FileNodeFilter } from "./types";
+import type { Email, Mailbox, StateChange, AccountStates, Thread, Identity, EmailAddress, ContactCard, AddressBook, AddressBookRights, VacationResponse, Calendar, CalendarRights, CalendarEvent, CalendarEventFilter, CalendarTask, FileNode, FileNodeFilter, Principal } from "./types";
 import type { SieveScript, SieveCapabilities } from "./sieve-types";
 import type { IJMAPClient } from "./client-interface";
 import { toWildcardQuery } from "./search-utils";
@@ -1361,6 +1361,99 @@ export class JMAPClient implements IJMAPClient {
     return totalDestroyed;
   }
 
+  async markMailboxAsRead(mailboxId: string, accountId?: string): Promise<number> {
+    const targetAccountId = accountId || this.accountId;
+    let totalMarked = 0;
+    let hasMore = true;
+
+    while (hasMore) {
+      const queryResponse = await this.request([
+        ["Email/query", {
+          accountId: targetAccountId,
+          filter: {
+            operator: "AND",
+            conditions: [
+              { inMailbox: mailboxId },
+              { notKeyword: "$seen" },
+            ],
+          },
+          limit: 500,
+        }, "0"],
+      ]);
+
+      const ids: string[] = queryResponse.methodResponses?.[0]?.[1]?.ids || [];
+      if (ids.length === 0) break;
+
+      const updates = Object.fromEntries(
+        ids.map((id) => [id, { "keywords/$seen": true }])
+      );
+
+      await this.request([
+        ["Email/set", { accountId: targetAccountId, update: updates }, "0"],
+      ]);
+
+      totalMarked += ids.length;
+      hasMore = ids.length === 500;
+    }
+
+    return totalMarked;
+  }
+
+  async markAllAsRead(excludeMailboxIds: string[] = [], accountId?: string): Promise<number> {
+    const targetAccountId = accountId || this.accountId;
+    const excludeSet = new Set(excludeMailboxIds);
+    let totalMarked = 0;
+    let hasMore = true;
+    let position = 0;
+
+    while (hasMore) {
+      const response = await this.request([
+        ["Email/query", {
+          accountId: targetAccountId,
+          filter: { notKeyword: "$seen" },
+          limit: 500,
+          position,
+        }, "0"],
+        ["Email/get", {
+          accountId: targetAccountId,
+          "#ids": { resultOf: "0", name: "Email/query", path: "/ids" },
+          properties: ["id", "mailboxIds"],
+        }, "1"],
+      ]);
+
+      const queryResult = response.methodResponses?.[0]?.[1];
+      const getResult = response.methodResponses?.[1]?.[1];
+      const ids: string[] = queryResult?.ids || [];
+      const emails: Array<{ id: string; mailboxIds?: Record<string, boolean> }> = getResult?.list || [];
+
+      if (ids.length === 0) break;
+
+      const targetIds = excludeSet.size === 0
+        ? ids
+        : emails
+            .filter(e => {
+              const mbIds = e.mailboxIds ? Object.keys(e.mailboxIds) : [];
+              return mbIds.some(id => !excludeSet.has(id));
+            })
+            .map(e => e.id);
+
+      if (targetIds.length > 0) {
+        const updates = Object.fromEntries(
+          targetIds.map((id) => [id, { "keywords/$seen": true }])
+        );
+        await this.request([
+          ["Email/set", { accountId: targetAccountId, update: updates }, "0"],
+        ]);
+        totalMarked += targetIds.length;
+      }
+
+      hasMore = ids.length === 500;
+      position += ids.length;
+    }
+
+    return totalMarked;
+  }
+
   async markAsSpam(emailId: string, accountId?: string): Promise<void> {
     const targetAccountId = accountId || this.accountId;
 
@@ -2733,6 +2826,10 @@ export class JMAPClient implements IJMAPClient {
     return this.hasCapability("urn:ietf:params:jmap:sieve");
   }
 
+  supportsPrincipals(): boolean {
+    return this.hasCapability("urn:ietf:params:jmap:principals");
+  }
+
   getSieveAccountId(): string {
     const sieveAccount = this.session?.primaryAccounts?.["urn:ietf:params:jmap:sieve"];
     return sieveAccount || this.accountId;
@@ -3105,6 +3202,102 @@ export class JMAPClient implements IJMAPClient {
     throw new Error("Failed to update address book");
   }
 
+  async deleteAddressBook(addressBookId: string, targetAccountId?: string): Promise<void> {
+    const accountId = targetAccountId || this.getContactsAccountId();
+    const response = await this.request([
+      ["AddressBook/set", { accountId, destroy: [addressBookId] }, "0"],
+    ], this.contactUsing());
+
+    const result = response.methodResponses?.[0]?.[1];
+    if (result?.notDestroyed?.[addressBookId]) {
+      const err = result.notDestroyed[addressBookId];
+      throw new Error(err.description || "Failed to delete address book");
+    }
+  }
+
+  // ── Sharing (RFC 9670) ──────────────────────────────────────────────────────
+
+  private principalsUsing(): string[] {
+    return ["urn:ietf:params:jmap:core", "urn:ietf:params:jmap:principals"];
+  }
+
+  /**
+   * List all principals visible to the user (RFC 9670). Stalwart returns the
+   * full directory regardless of `filter`, so we fetch the whole list and let
+   * callers filter client-side.
+   */
+  async getPrincipals(targetAccountId?: string): Promise<Principal[]> {
+    if (!this.supportsPrincipals()) return [];
+    const accountId = targetAccountId || this.accountId;
+    try {
+      const response = await this.request([
+        ["Principal/query", { accountId }, "0"],
+        ["Principal/get", {
+          accountId,
+          "#ids": { resultOf: "0", name: "Principal/query", path: "/ids" },
+        }, "1"],
+      ], this.principalsUsing());
+
+      const getResp = response.methodResponses?.find((r) => r[0] === "Principal/get");
+      if (!getResp) return [];
+      const list = (getResp[1].list || []) as Principal[];
+      return list.map((p) => ({ ...p, accountId }));
+    } catch (error) {
+      console.error("Failed to fetch principals:", error);
+      return [];
+    }
+  }
+
+  /**
+   * Add, update, or remove a principal's rights on a calendar.
+   * Pass `rights: null` to revoke access.
+   */
+  async setCalendarShare(
+    calendarId: string,
+    principalId: string,
+    rights: CalendarRights | null,
+    targetAccountId?: string,
+  ): Promise<void> {
+    const accountId = targetAccountId || this.getCalendarsAccountId();
+    const response = await this.request([
+      ["Calendar/set", {
+        accountId,
+        update: { [calendarId]: { [`shareWith/${principalId}`]: rights } },
+      }, "0"],
+    ], this.calendarUsing());
+
+    const result = response.methodResponses?.[0]?.[1];
+    if (result?.notUpdated?.[calendarId]) {
+      const err = result.notUpdated[calendarId];
+      throw new Error(err.description || "Failed to update calendar share");
+    }
+  }
+
+  /**
+   * Add, update, or remove a principal's rights on an address book.
+   * Pass `rights: null` to revoke access.
+   */
+  async setAddressBookShare(
+    addressBookId: string,
+    principalId: string,
+    rights: AddressBookRights | null,
+    targetAccountId?: string,
+  ): Promise<void> {
+    const accountId = targetAccountId || this.getContactsAccountId();
+    const response = await this.request([
+      ["AddressBook/set", {
+        accountId,
+        update: { [addressBookId]: { [`shareWith/${principalId}`]: rights } },
+      }, "0"],
+    ], this.contactUsing());
+
+    const result = response.methodResponses?.[0]?.[1];
+    if (result?.notUpdated?.[addressBookId]) {
+      const err = result.notUpdated[addressBookId];
+      throw new Error(err.description || "Failed to update address book share");
+    }
+  }
+
   private async fetchPaginatedContacts(
     accountId: string,
     filter?: Record<string, unknown>,

lib/jmap/types.ts

@@ -368,6 +368,7 @@ export interface AddressBook {
   isDefault?: boolean;
   isSubscribed?: boolean;
   myRights?: AddressBookRights;
+  shareWith?: Record<string, AddressBookRights> | null;
   accountId?: string;
   accountName?: string;
   isShared?: boolean;
@@ -376,10 +377,22 @@ export interface AddressBook {
 export interface AddressBookRights {
   mayRead: boolean;
   mayWrite: boolean;
-  mayShare: boolean;
+  mayShare?: boolean;
   mayDelete: boolean;
 }
 
+// JMAP Principals (RFC 9670)
+export interface Principal {
+  id: string;
+  type: 'individual' | 'group' | 'resource' | 'location' | 'other';
+  name: string;
+  description?: string | null;
+  email?: string | null;
+  timeZone?: string | null;
+  capabilities?: Record<string, unknown>;
+  accountId?: string;
+}
+
 export interface VacationResponse {
   id: string;
   isEnabled: boolean;
@@ -442,7 +455,7 @@ export interface CalendarRights {
   mayWriteOwn: boolean;
   mayUpdatePrivate: boolean;
   mayRSVP: boolean;
-  mayAdmin: boolean;
+  mayShare: boolean;
   mayDelete: boolean;
 }
 

lib/oauth/token-exchange.ts

@@ -2,18 +2,23 @@ import { logger } from '@/lib/logger';
 import { discoverOAuth } from '@/lib/oauth/discovery';
 import type { OAuthMetadata } from '@/lib/oauth/discovery';
 import { readFileEnv } from '@/lib/read-file-env';
+import { configManager } from '@/lib/admin/config-manager';
 
-const CLIENT_SECRET = process.env.OAUTH_CLIENT_SECRET || readFileEnv(process.env.OAUTH_CLIENT_SECRET_FILE) || '';
+function getClientSecret(): string {
+  const adminSecret = configManager.get<string>('oauthClientSecret', '');
+  if (adminSecret) return adminSecret;
+  return process.env.OAUTH_CLIENT_SECRET || readFileEnv(process.env.OAUTH_CLIENT_SECRET_FILE) || '';
+}
 
 export function getRequiredConfig() {
-  const clientId = process.env.OAUTH_CLIENT_ID;
-  const serverUrl = process.env.JMAP_SERVER_URL || process.env.NEXT_PUBLIC_JMAP_SERVER_URL;
-  const issuerUrl = process.env.OAUTH_ISSUER_URL;
+  const clientId = configManager.get<string>('oauthClientId', '') || process.env.OAUTH_CLIENT_ID;
+  const serverUrl = configManager.get<string>('jmapServerUrl', '') || process.env.JMAP_SERVER_URL || process.env.NEXT_PUBLIC_JMAP_SERVER_URL;
+  const issuerUrl = configManager.get<string>('oauthIssuerUrl', '') || process.env.OAUTH_ISSUER_URL;
   if (!clientId || !serverUrl) {
     throw new Error(`OAuth misconfigured: ${[!clientId && 'OAUTH_CLIENT_ID', !serverUrl && 'JMAP_SERVER_URL'].filter(Boolean).join(', ')} not set`);
   }
   const discoveryUrl = issuerUrl?.trim() || serverUrl;
-  if (issuerUrl !== undefined && !issuerUrl.trim()) {
+  if (issuerUrl !== undefined && issuerUrl !== '' && !issuerUrl.trim()) {
     logger.warn('OAUTH_ISSUER_URL is set but empty, falling back to JMAP_SERVER_URL for discovery');
   }
   return { clientId, serverUrl, discoveryUrl };
@@ -36,8 +41,9 @@ export async function getMetadata(): Promise<OAuthMetadata | null> {
 export function buildOAuthParams(base: Record<string, string>): URLSearchParams {
   const { clientId } = getRequiredConfig();
   const params = new URLSearchParams({ ...base, client_id: clientId });
-  if (CLIENT_SECRET) {
-    params.set('client_secret', CLIENT_SECRET);
+  const secret = getClientSecret();
+  if (secret) {
+    params.set('client_secret', secret);
   }
   return params;
 }

lib/plugin-api.ts

@@ -121,6 +121,7 @@ export interface PluginAPI {
     registerSettingsSection: (section: SettingsSection) => Disposable;
     registerComposerAction: (action: ComposerAction) => Disposable;
     registerSidebarWidget: (widget: SidebarWidget) => Disposable;
+    registerComposerSidebar: (widget: SidebarWidget) => Disposable;
     registerDetailSidebar: (widget: SidebarWidget) => Disposable;
     registerContextMenuItem: (item: ContextMenuItem) => Disposable;
     registerNavigationRailItem: (component: React.ComponentType) => Disposable;
@@ -609,6 +610,12 @@ export function createPluginAPI(plugin: InstalledPlugin): PluginAPI {
         return registerSlot(plugin.id, 'sidebar-widget', widget.render as React.ComponentType<Record<string, unknown>>, widget.order ?? 100);
       },
 
+      registerComposerSidebar: (widget: SidebarWidget) => {
+        requirePermission(plugin, 'ui:composer-sidebar');
+        const slot = widget.side === 'right' ? 'composer-sidebar-right' : 'composer-sidebar';
+        return registerSlot(plugin.id, slot, widget.render as React.ComponentType<Record<string, unknown>>, widget.order ?? 100);
+      },
+
       registerDetailSidebar: (widget: SidebarWidget) => {
         requirePermission(plugin, 'ui:sidebar-widget');
         return registerSlot(plugin.id, 'email-detail-sidebar', widget.render as React.ComponentType<Record<string, unknown>>, widget.order ?? 100);

lib/plugin-types.ts

@@ -41,6 +41,14 @@ export interface PluginManifest {
    * so plugins can use api.i18n.t() without calling addTranslations() first.
    */
   locales?: Record<string, Record<string, string>>;
+  /**
+   * External origins this plugin may embed in iframes (e.g. for YouTube,
+   * Vimeo, Jitsi). Each entry is a single CSP origin like
+   *   "https://www.youtube-nocookie.com"
+   *   "https://*.example.com:8443"
+   * Validated at install time and merged into the host CSP `frame-src`.
+   */
+  frameOrigins?: string[];
 }
 
 export interface SettingFieldSchema {
@@ -101,6 +109,8 @@ export type SlotName =
   | 'email-banner'
   | 'email-footer'
   | 'composer-toolbar'
+  | 'composer-sidebar'
+  | 'composer-sidebar-right'
   | 'sidebar-widget'
   | 'email-detail-sidebar'
   | 'settings-section'
@@ -150,6 +160,12 @@ export interface SidebarWidget {
   label: string;
   render: React.ComponentType;
   order?: number;
+  /**
+   * For composer sidebars, choose which side of the New Message dialog the
+   * panel renders on. Defaults to `'left'` for backwards compatibility.
+   * Ignored by other sidebar slots.
+   */
+  side?: 'left' | 'right';
 }
 
 export interface ContextMenuItem {
@@ -495,7 +511,8 @@ export const ALL_PERMISSIONS = [
   'auth:observe',
   'http:post',
   'ui:observe', 'ui:toolbar', 'ui:email-banner', 'ui:email-footer',
-  'ui:composer-toolbar', 'ui:sidebar-widget', 'ui:settings-section',
+  'ui:composer-toolbar', 'ui:composer-sidebar',
+  'ui:sidebar-widget', 'ui:settings-section',
   'ui:context-menu', 'ui:navigation-rail', 'ui:keyboard',
   'ui:calendar-action', 'ui:admin-page',
   'admin:config',

lib/vcard.ts

@@ -51,6 +51,53 @@ function unfoldLines(vcf: string): string {
   return vcf.replace(/\r\n[ \t]/g, "").replace(/\r\n/g, "\n").replace(/\r/g, "\n");
 }
 
+// vCard 2.1 quoted-printable soft line breaks: a line ending in `=` continues
+// onto the next line. This is distinct from RFC 5545/6350 line folding (which
+// uses leading whitespace and is already handled in unfoldLines). Only merge
+// when the originating line declares ENCODING=QUOTED-PRINTABLE so we don't
+// accidentally splice unrelated lines.
+function joinQpSoftBreaks(lines: string[]): string[] {
+  const result: string[] = [];
+  let i = 0;
+  while (i < lines.length) {
+    let line = lines[i];
+    if (/;ENCODING=QUOTED-PRINTABLE/i.test(line)) {
+      while (line.endsWith("=") && i + 1 < lines.length) {
+        i++;
+        line = line.slice(0, -1) + lines[i];
+      }
+    }
+    result.push(line);
+    i++;
+  }
+  return result;
+}
+
+function decodeQuotedPrintable(input: string, charset?: string): string {
+  const cleaned = input.replace(/=\r?\n/g, "");
+  const bytes: number[] = [];
+  let i = 0;
+  while (i < cleaned.length) {
+    const ch = cleaned[i];
+    if (ch === "=" && i + 2 < cleaned.length) {
+      const hex = cleaned.substring(i + 1, i + 3);
+      if (/^[0-9A-Fa-f]{2}$/.test(hex)) {
+        bytes.push(parseInt(hex, 16));
+        i += 3;
+        continue;
+      }
+    }
+    bytes.push(cleaned.charCodeAt(i) & 0xff);
+    i += 1;
+  }
+  const label = (charset || "utf-8").toLowerCase();
+  try {
+    return new TextDecoder(label).decode(new Uint8Array(bytes));
+  } catch {
+    return new TextDecoder("utf-8").decode(new Uint8Array(bytes));
+  }
+}
+
 function decodeValue(raw: string): string {
   return raw
     .replace(/\\n/gi, "\n")
@@ -77,7 +124,9 @@ function parseParams(paramStr: string): Record<string, string> {
       params[part.substring(0, eq).toUpperCase()] = part.substring(eq + 1).replace(/"/g, "");
     } else {
       const upper = part.toUpperCase();
-      if (["WORK", "HOME", "CELL", "FAX", "VOICE", "PREF", "PAGER", "VIDEO", "TEXT", "TEXTPHONE"].includes(upper)) {
+      if (upper === "QUOTED-PRINTABLE" || upper === "BASE64") {
+        params.ENCODING = upper;
+      } else if (["WORK", "HOME", "CELL", "FAX", "VOICE", "PREF", "PAGER", "VIDEO", "TEXT", "TEXTPHONE"].includes(upper)) {
         params.TYPE = params.TYPE ? `${params.TYPE},${upper}` : upper;
       }
     }
@@ -118,7 +167,7 @@ function contextToType(contexts: Record<string, boolean> | undefined): string {
 
 export function parseVCard(vcfString: string): ContactCard[] {
   const text = unfoldLines(vcfString);
-  const lines = text.split("\n");
+  const lines = joinQpSoftBreaks(text.split("\n"));
   const contacts: ContactCard[] = [];
   let current: Record<string, string[]> | null = null;
 
@@ -163,8 +212,13 @@ function buildContact(raw: Record<string, string[]>): ContactCard | null {
     const paramStr = semiIdx > 0 ? fullKey.substring(semiIdx + 1) : "";
     const params = parseParams(paramStr);
 
+    const isQuotedPrintable = params.ENCODING?.toUpperCase() === "QUOTED-PRINTABLE";
+
     for (const rawValue of values) {
-      const val = decodeValue(rawValue);
+      const decoded = isQuotedPrintable
+        ? decodeQuotedPrintable(rawValue, params.CHARSET)
+        : rawValue;
+      const val = decodeValue(decoded);
 
       switch (propName) {
         case "FN":
@@ -182,13 +236,17 @@ function buildContact(raw: Record<string, string[]>): ContactCard | null {
           break;
 
         case "N": {
+          // vCard N: family;given;additional;prefix;suffix  (RFC 6350 §6.2.2)
+          // Mapped to JSContact-standard kinds (RFC 9553 §2.2.1):
+          //   prefix→title, additional→given2, suffix→generation.
+          // Pushed in natural display order so `isOrdered: true` renders correctly.
           const nParts = val.split(";");
           const components: NameComponent[] = [];
-          if (nParts[3]) components.push({ kind: "prefix", value: nParts[3] });
+          if (nParts[3]) components.push({ kind: "title", value: nParts[3] });
           if (nParts[1]) components.push({ kind: "given", value: nParts[1] });
-          if (nParts[2]) components.push({ kind: "additional", value: nParts[2] });
+          if (nParts[2]) components.push({ kind: "given2", value: nParts[2] });
           if (nParts[0]) components.push({ kind: "surname", value: nParts[0] });
-          if (nParts[4]) components.push({ kind: "suffix", value: nParts[4] });
+          if (nParts[4]) components.push({ kind: "generation", value: nParts[4] });
           if (components.length > 0) {
             card.name = { components, isOrdered: true };
           }
@@ -558,11 +616,14 @@ function generateSingleVCard(contact: ContactCard): string {
   }
 
   const components = contact.name?.components || [];
-  const given = components.find(c => c.kind === "given")?.value || "";
-  const surname = components.find(c => c.kind === "surname")?.value || "";
-  const prefix = components.find(c => c.kind === "prefix")?.value || "";
-  const suffix = components.find(c => c.kind === "suffix")?.value || "";
-  const additional = components.find(c => c.kind === "additional")?.value || "";
+  const findKind = (...kinds: string[]) =>
+    components.find(c => kinds.includes(c.kind))?.value || "";
+  const given = findKind("given");
+  const surname = findKind("surname");
+  // Accept JSContact-standard kinds (RFC 9553) and legacy vCard-style aliases.
+  const prefix = findKind("title", "prefix");
+  const suffix = findKind("generation", "suffix");
+  const additional = findKind("given2", "additional", "middle");
 
   const fn = [prefix, given, additional, surname, suffix].filter(Boolean).join(" ") || contact.name?.full || "";
   if (fn) {

locales/de/common.json

@@ -1285,6 +1285,10 @@
         "label": "Absender-Favicons (Experimentell)",
         "description": "Website-Symbole als Profilbilder für geschäftliche Absender anzeigen"
       },
+      "show_avatars_in_junk": {
+        "label": "Avatare im Spam-Ordner anzeigen",
+        "description": "Profilbilder und Favicons für Absender im Spam-Ordner anzeigen. Standardmäßig deaktiviert, damit Phishing-Versuche nicht durch vertraute Logos legitim wirken."
+      },
       "keyboard_shortcuts": {
         "label": "Tastaturkürzel",
         "description": "Verfügbare Tastaturkürzel anzeigen",
@@ -1586,6 +1590,43 @@
     "items_selected": "{count} E-Mails ausgewählt",
     "edit_draft": "Entwurf bearbeiten"
   },
+  "mailbox_context_menu": {
+    "mark_folder_read": "Ordner als gelesen markieren",
+    "mark_folder_tree_read": "Ordner & Unterordner als gelesen markieren",
+    "mark_all_folders_read": "Alle Ordner als gelesen markieren",
+    "new_subfolder": "Neuer Unterordner...",
+    "new_folder": "Neuer Ordner...",
+    "rename": "Umbenennen...",
+    "empty_folder": "Ordner leeren",
+    "empty_folder_generic": "Ordner leeren",
+    "delete_folder": "Ordner löschen",
+    "refresh": "Aktualisieren",
+    "mark_all_confirm_title": "Alle Ordner als gelesen markieren",
+    "mark_all_confirm_message": "Jede ungelesene Nachricht in deinem persönlichen Konto als gelesen markieren?",
+    "delete_confirm_title": "Ordner löschen",
+    "delete_confirm_message": "Den Ordner \"{name}\" dauerhaft löschen? Dies kann nicht rückgängig gemacht werden.",
+    "prompt_new_subfolder": "Gib einen Namen für den neuen Unterordner ein.",
+    "prompt_new_folder": "Gib einen Namen für den neuen Ordner ein.",
+    "prompt_rename": "Gib einen neuen Namen für diesen Ordner ein.",
+    "placeholder_folder_name": "Ordnername",
+    "create": "Erstellen",
+    "rename_confirm": "Umbenennen",
+    "toast_marked_read": "Ordner als gelesen markiert",
+    "toast_marked_read_count": "{count, plural, one {1 Nachricht} other {# Nachrichten}} als gelesen markiert",
+    "toast_already_read": "Keine ungelesenen Nachrichten",
+    "toast_marked_all_read": "Alle Ordner als gelesen markiert",
+    "toast_emptied": "Ordner geleert",
+    "toast_folder_created": "Ordner erstellt",
+    "toast_folder_renamed": "Ordner umbenannt",
+    "toast_folder_deleted": "Ordner gelöscht",
+    "toast_error_mark_read": "Konnte nicht als gelesen markiert werden",
+    "toast_error_empty": "Ordner konnte nicht geleert werden",
+    "toast_error_create": "Ordner konnte nicht erstellt werden",
+    "toast_error_rename": "Ordner konnte nicht umbenannt werden",
+    "toast_error_delete": "Ordner konnte nicht gelöscht werden",
+    "toast_error_delete_has_children": "Ordner enthält Unterordner. Entferne diese zuerst.",
+    "toast_error_delete_has_email": "Ordner ist nicht leer. Leere ihn zuerst."
+  },
   "shortcuts": {
     "title": "Tastaturkürzel",
     "tip": "Drücken Sie ? jederzeit, um diese Hilfe anzuzeigen",
@@ -1774,7 +1815,13 @@
       "renamed": "Adressbuch umbenannt",
       "rename_failed": "Adressbuch konnte nicht umbenannt werden",
       "default": "Standard",
-      "manage": "Adressbücher verwalten"
+      "manage": "Adressbücher verwalten",
+      "share": "Adressbuch freigeben",
+      "new_contact_in_book": "Neuer Kontakt in diesem Adressbuch",
+      "delete": "Adressbuch löschen",
+      "confirm_delete": "„{name}\" löschen? Alle Kontakte in diesem Adressbuch werden entfernt.",
+      "deleted": "Adressbuch gelöscht",
+      "delete_failed": "Adressbuch konnte nicht gelöscht werden"
     },
     "detail": {
       "emails": "E-Mail-Adressen",
@@ -2299,7 +2346,9 @@
       "confirm_clear": "Alle Ereignisse aus \"{name}\" löschen? Dies kann nicht rückgängig gemacht werden.",
       "clear_events": "Ereignisse löschen",
       "events_cleared": "{count} Ereignisse gelöscht",
-      "error_clear": "Kalenderereignisse konnten nicht gelöscht werden"
+      "error_clear": "Kalenderereignisse konnten nicht gelöscht werden",
+      "share": "Kalender freigeben",
+      "new_event_in_calendar": "Neuer Termin in diesem Kalender"
     },
     "subscription": {
       "title": "iCal-Abonnement",
@@ -2665,5 +2714,28 @@
   },
   "unified_mailbox": {
     "search_unavailable": "Die Suche ist in der vereinheitlichten Ansicht nicht verfügbar"
+  },
+  "sharing": {
+    "title": "„{name}\" freigeben",
+    "description": "Anderen Benutzern oder Gruppen auf diesem Server Zugriff gewähren. Änderungen werden sofort wirksam.",
+    "no_shares": "Noch nicht freigegeben.",
+    "add_person": "Person oder Gruppe hinzufügen",
+    "search_placeholder": "Nach Name oder E-Mail suchen…",
+    "loading_principals": "Benutzer werden geladen…",
+    "no_principals": "Keine weiteren Benutzer oder Gruppen gefunden.",
+    "no_match": "Keine Treffer.",
+    "remove": "Zugriff entfernen",
+    "group": "Gruppe",
+    "share_added": "Zugriff erteilt",
+    "share_updated": "Zugriff aktualisiert",
+    "share_removed": "Zugriff entfernt",
+    "share_failed": "Freigabe konnte nicht aktualisiert werden",
+    "preset": {
+      "freeBusy": "Nur Frei/Belegt",
+      "read": "Nur lesen",
+      "readWrite": "Lesen & schreiben",
+      "manager": "Verwalten",
+      "custom": "Benutzerdefiniert"
+    }
   }
 }

locales/en/common.json

@@ -1287,6 +1287,10 @@
         "label": "Sender Favicons (Experimental)",
         "description": "Show website icons as profile pictures for business senders"
       },
+      "show_avatars_in_junk": {
+        "label": "Show Avatars in Junk Folder",
+        "description": "Show profile images and favicons for senders in the junk folder. Disabled by default to avoid lending visual legitimacy to phishing attempts."
+      },
       "keyboard_shortcuts": {
         "label": "Keyboard Shortcuts",
         "description": "View available keyboard shortcuts",
@@ -1590,6 +1594,43 @@
     "items_selected": "{count} emails selected",
     "edit_draft": "Edit Draft"
   },
+  "mailbox_context_menu": {
+    "mark_folder_read": "Mark folder as read",
+    "mark_folder_tree_read": "Mark folder & subfolders as read",
+    "mark_all_folders_read": "Mark all folders as read",
+    "new_subfolder": "New subfolder...",
+    "new_folder": "New folder...",
+    "rename": "Rename...",
+    "empty_folder": "Empty folder",
+    "empty_folder_generic": "Empty folder",
+    "delete_folder": "Delete folder",
+    "refresh": "Refresh",
+    "mark_all_confirm_title": "Mark all folders as read",
+    "mark_all_confirm_message": "Mark every unread message in your personal account as read?",
+    "delete_confirm_title": "Delete folder",
+    "delete_confirm_message": "Permanently delete the folder \"{name}\"? This action cannot be undone.",
+    "prompt_new_subfolder": "Enter a name for the new subfolder.",
+    "prompt_new_folder": "Enter a name for the new folder.",
+    "prompt_rename": "Enter a new name for this folder.",
+    "placeholder_folder_name": "Folder name",
+    "create": "Create",
+    "rename_confirm": "Rename",
+    "toast_marked_read": "Folder marked as read",
+    "toast_marked_read_count": "Marked {count, plural, one {1 message} other {# messages}} as read",
+    "toast_already_read": "No unread messages",
+    "toast_marked_all_read": "All folders marked as read",
+    "toast_emptied": "Folder emptied",
+    "toast_folder_created": "Folder created",
+    "toast_folder_renamed": "Folder renamed",
+    "toast_folder_deleted": "Folder deleted",
+    "toast_error_mark_read": "Failed to mark as read",
+    "toast_error_empty": "Failed to empty folder",
+    "toast_error_create": "Failed to create folder",
+    "toast_error_rename": "Failed to rename folder",
+    "toast_error_delete": "Failed to delete folder",
+    "toast_error_delete_has_children": "Folder has subfolders. Remove them first.",
+    "toast_error_delete_has_email": "Folder is not empty. Empty it first."
+  },
   "shortcuts": {
     "title": "Keyboard Shortcuts",
     "tip": "Press ? anytime to show this help",
@@ -1778,7 +1819,13 @@
       "renamed": "Address book renamed",
       "rename_failed": "Failed to rename address book",
       "default": "Default",
-      "manage": "Manage address books"
+      "manage": "Manage address books",
+      "share": "Share address book",
+      "new_contact_in_book": "New contact in this address book",
+      "delete": "Delete address book",
+      "confirm_delete": "Delete \"{name}\"? All contacts in this address book will be removed.",
+      "deleted": "Address book deleted",
+      "delete_failed": "Failed to delete address book"
     },
     "detail": {
       "emails": "Email Addresses",
@@ -2303,7 +2350,9 @@
       "error_delete": "Failed to delete calendar",
       "caldav_url": "CalDAV URL",
       "copy_url": "Copy CalDAV URL",
-      "url_copied": "CalDAV URL copied to clipboard"
+      "url_copied": "CalDAV URL copied to clipboard",
+      "share": "Share calendar",
+      "new_event_in_calendar": "New event in this calendar"
     },
     "subscription": {
       "title": "iCal Subscription",
@@ -2385,6 +2434,29 @@
       "overdue": "Overdue"
     }
   },
+  "sharing": {
+    "title": "Share \"{name}\"",
+    "description": "Grant access to other users or groups on this server. Changes take effect immediately.",
+    "no_shares": "Not shared with anyone yet.",
+    "add_person": "Add person or group",
+    "search_placeholder": "Search by name or email…",
+    "loading_principals": "Loading users…",
+    "no_principals": "No other users or groups found.",
+    "no_match": "No matches.",
+    "remove": "Remove access",
+    "group": "Group",
+    "share_added": "Access granted",
+    "share_updated": "Access updated",
+    "share_removed": "Access removed",
+    "share_failed": "Failed to update sharing",
+    "preset": {
+      "freeBusy": "Free/busy only",
+      "read": "Read only",
+      "readWrite": "Read & write",
+      "manager": "Manager",
+      "custom": "Custom"
+    }
+  },
   "advanced_search": {
     "title": "Advanced Search",
     "from": "From",

locales/es/common.json

@@ -1285,6 +1285,10 @@
         "label": "Favicons de remitente (Experimental)",
         "description": "Mostrar iconos de sitios web como fotos de perfil para remitentes empresariales"
       },
+      "show_avatars_in_junk": {
+        "label": "Mostrar avatares en la carpeta de spam",
+        "description": "Mostrar imágenes de perfil y favicons de remitentes en la carpeta de spam. Desactivado por defecto para no dar apariencia legítima a los intentos de phishing."
+      },
       "keyboard_shortcuts": {
         "label": "Atajos de Teclado",
         "description": "Ver atajos de teclado disponibles",
@@ -1586,6 +1590,43 @@
     "items_selected": "{count} correos seleccionados",
     "edit_draft": "Editar borrador"
   },
+  "mailbox_context_menu": {
+    "mark_folder_read": "Mark folder as read",
+    "mark_folder_tree_read": "Mark folder & subfolders as read",
+    "mark_all_folders_read": "Mark all folders as read",
+    "new_subfolder": "New subfolder...",
+    "new_folder": "New folder...",
+    "rename": "Rename...",
+    "empty_folder": "Empty folder",
+    "empty_folder_generic": "Empty folder",
+    "delete_folder": "Delete folder",
+    "refresh": "Refresh",
+    "mark_all_confirm_title": "Mark all folders as read",
+    "mark_all_confirm_message": "Mark every unread message in your personal account as read?",
+    "delete_confirm_title": "Delete folder",
+    "delete_confirm_message": "Permanently delete the folder \"{name}\"? This action cannot be undone.",
+    "prompt_new_subfolder": "Enter a name for the new subfolder.",
+    "prompt_new_folder": "Enter a name for the new folder.",
+    "prompt_rename": "Enter a new name for this folder.",
+    "toast_marked_read": "Folder marked as read",
+    "toast_marked_read_count": "Marked {count, plural, one {1 message} other {# messages}} as read",
+    "toast_already_read": "No unread messages",
+    "toast_marked_all_read": "All folders marked as read",
+    "toast_emptied": "Folder emptied",
+    "toast_folder_created": "Folder created",
+    "toast_folder_renamed": "Folder renamed",
+    "toast_folder_deleted": "Folder deleted",
+    "toast_error_mark_read": "Failed to mark as read",
+    "toast_error_empty": "Failed to empty folder",
+    "toast_error_create": "Failed to create folder",
+    "toast_error_rename": "Failed to rename folder",
+    "toast_error_delete": "Failed to delete folder",
+    "toast_error_delete_has_children": "Folder has subfolders. Remove them first.",
+    "toast_error_delete_has_email": "Folder is not empty. Empty it first.",
+    "placeholder_folder_name": "Folder name",
+    "create": "Create",
+    "rename_confirm": "Rename"
+  },
   "shortcuts": {
     "title": "Atajos de Teclado",
     "tip": "Presione ? en cualquier momento para mostrar esta ayuda",
@@ -1774,7 +1815,13 @@
       "renamed": "Libreta de direcciones renombrada",
       "rename_failed": "Error al renombrar la libreta de direcciones",
       "default": "Predeterminada",
-      "manage": "Administrar libretas de direcciones"
+      "manage": "Administrar libretas de direcciones",
+      "share": "Compartir libreta de direcciones",
+      "new_contact_in_book": "Nuevo contacto en esta libreta",
+      "delete": "Eliminar libreta de direcciones",
+      "confirm_delete": "¿Eliminar «{name}»? Todos los contactos de esta libreta se eliminarán.",
+      "deleted": "Libreta de direcciones eliminada",
+      "delete_failed": "No se pudo eliminar la libreta de direcciones"
     },
     "detail": {
       "emails": "Direcciones de correo",
@@ -2299,7 +2346,9 @@
       "confirm_clear": "¿Borrar todos los eventos de \"{name}\"? Esta acción no se puede deshacer.",
       "clear_events": "Borrar eventos",
       "events_cleared": "{count} eventos borrados",
-      "error_clear": "No se pudieron borrar los eventos del calendario"
+      "error_clear": "No se pudieron borrar los eventos del calendario",
+      "share": "Compartir calendario",
+      "new_event_in_calendar": "Nuevo evento en este calendario"
     },
     "subscription": {
       "title": "Suscripción iCal",
@@ -2665,5 +2714,28 @@
   },
   "unified_mailbox": {
     "search_unavailable": "La búsqueda no está disponible en la vista unificada"
+  },
+  "sharing": {
+    "title": "Compartir «{name}»",
+    "description": "Concede acceso a otros usuarios o grupos de este servidor. Los cambios surten efecto inmediatamente.",
+    "no_shares": "Aún no se ha compartido con nadie.",
+    "add_person": "Añadir persona o grupo",
+    "search_placeholder": "Buscar por nombre o correo…",
+    "loading_principals": "Cargando usuarios…",
+    "no_principals": "No se han encontrado otros usuarios ni grupos.",
+    "no_match": "Sin resultados.",
+    "remove": "Quitar acceso",
+    "group": "Grupo",
+    "share_added": "Acceso concedido",
+    "share_updated": "Acceso actualizado",
+    "share_removed": "Acceso retirado",
+    "share_failed": "No se pudo actualizar el uso compartido",
+    "preset": {
+      "freeBusy": "Solo disponibilidad",
+      "read": "Solo lectura",
+      "readWrite": "Lectura y escritura",
+      "manager": "Administrador",
+      "custom": "Personalizado"
+    }
   }
 }

locales/fr/common.json

@@ -1285,6 +1285,10 @@
         "label": "Favicons des expéditeurs (Expérimental)",
         "description": "Afficher les icônes de sites web comme photos de profil pour les expéditeurs professionnels"
       },
+      "show_avatars_in_junk": {
+        "label": "Afficher les avatars dans le dossier indésirable",
+        "description": "Afficher les photos de profil et favicons des expéditeurs dans le dossier indésirable. Désactivé par défaut pour éviter de donner une apparence légitime aux tentatives d'hameçonnage."
+      },
       "keyboard_shortcuts": {
         "label": "Raccourcis clavier",
         "description": "Voir les raccourcis clavier disponibles",
@@ -1586,6 +1590,43 @@
     "items_selected": "{count} emails sélectionnés",
     "edit_draft": "Modifier le brouillon"
   },
+  "mailbox_context_menu": {
+    "mark_folder_read": "Mark folder as read",
+    "mark_folder_tree_read": "Mark folder & subfolders as read",
+    "mark_all_folders_read": "Mark all folders as read",
+    "new_subfolder": "New subfolder...",
+    "new_folder": "New folder...",
+    "rename": "Rename...",
+    "empty_folder": "Empty folder",
+    "empty_folder_generic": "Empty folder",
+    "delete_folder": "Delete folder",
+    "refresh": "Refresh",
+    "mark_all_confirm_title": "Mark all folders as read",
+    "mark_all_confirm_message": "Mark every unread message in your personal account as read?",
+    "delete_confirm_title": "Delete folder",
+    "delete_confirm_message": "Permanently delete the folder \"{name}\"? This action cannot be undone.",
+    "prompt_new_subfolder": "Enter a name for the new subfolder.",
+    "prompt_new_folder": "Enter a name for the new folder.",
+    "prompt_rename": "Enter a new name for this folder.",
+    "toast_marked_read": "Folder marked as read",
+    "toast_marked_read_count": "Marked {count, plural, one {1 message} other {# messages}} as read",
+    "toast_already_read": "No unread messages",
+    "toast_marked_all_read": "All folders marked as read",
+    "toast_emptied": "Folder emptied",
+    "toast_folder_created": "Folder created",
+    "toast_folder_renamed": "Folder renamed",
+    "toast_folder_deleted": "Folder deleted",
+    "toast_error_mark_read": "Failed to mark as read",
+    "toast_error_empty": "Failed to empty folder",
+    "toast_error_create": "Failed to create folder",
+    "toast_error_rename": "Failed to rename folder",
+    "toast_error_delete": "Failed to delete folder",
+    "toast_error_delete_has_children": "Folder has subfolders. Remove them first.",
+    "toast_error_delete_has_email": "Folder is not empty. Empty it first.",
+    "placeholder_folder_name": "Folder name",
+    "create": "Create",
+    "rename_confirm": "Rename"
+  },
   "shortcuts": {
     "title": "Raccourcis clavier",
     "tip": "Appuyez sur ? à tout moment pour afficher cette aide",
@@ -1774,7 +1815,13 @@
       "renamed": "Carnet d'adresses renommé",
       "rename_failed": "Échec du renommage du carnet d'adresses",
       "default": "Par défaut",
-      "manage": "Gérer les carnets d'adresses"
+      "manage": "Gérer les carnets d'adresses",
+      "share": "Partager le carnet d'adresses",
+      "new_contact_in_book": "Nouveau contact dans ce carnet d'adresses",
+      "delete": "Supprimer le carnet d'adresses",
+      "confirm_delete": "Supprimer « {name} » ? Tous les contacts de ce carnet d'adresses seront supprimés.",
+      "deleted": "Carnet d'adresses supprimé",
+      "delete_failed": "Échec de la suppression du carnet d'adresses"
     },
     "detail": {
       "emails": "Adresses e-mail",
@@ -2299,7 +2346,9 @@
       "confirm_clear": "Supprimer tous les événements de \"{name}\" ? Cette action est irréversible.",
       "clear_events": "Supprimer les événements",
       "events_cleared": "{count} événements supprimés",
-      "error_clear": "Impossible de supprimer les événements du calendrier"
+      "error_clear": "Impossible de supprimer les événements du calendrier",
+      "share": "Partager le calendrier",
+      "new_event_in_calendar": "Nouvel événement dans ce calendrier"
     },
     "subscription": {
       "title": "Abonnement iCal",
@@ -2665,5 +2714,28 @@
   },
   "unified_mailbox": {
     "search_unavailable": "La recherche n'est pas disponible dans la vue unifiée"
+  },
+  "sharing": {
+    "title": "Partager « {name} »",
+    "description": "Accordez l'accès à d'autres utilisateurs ou groupes de ce serveur. Les modifications sont immédiates.",
+    "no_shares": "Pas encore partagé.",
+    "add_person": "Ajouter une personne ou un groupe",
+    "search_placeholder": "Rechercher par nom ou e-mail…",
+    "loading_principals": "Chargement des utilisateurs…",
+    "no_principals": "Aucun autre utilisateur ou groupe trouvé.",
+    "no_match": "Aucun résultat.",
+    "remove": "Révoquer l'accès",
+    "group": "Groupe",
+    "share_added": "Accès accordé",
+    "share_updated": "Accès mis à jour",
+    "share_removed": "Accès révoqué",
+    "share_failed": "Échec de la mise à jour du partage",
+    "preset": {
+      "freeBusy": "Disponibilité uniquement",
+      "read": "Lecture seule",
+      "readWrite": "Lecture & écriture",
+      "manager": "Gestionnaire",
+      "custom": "Personnalisé"
+    }
   }
 }

locales/it/common.json

@@ -1285,6 +1285,10 @@
         "label": "Favicon dei mittenti (Sperimentale)",
         "description": "Mostra le icone dei siti web come immagini profilo per i mittenti aziendali"
       },
+      "show_avatars_in_junk": {
+        "label": "Mostra avatar nella cartella spam",
+        "description": "Mostra immagini profilo e favicon dei mittenti nella cartella spam. Disattivato per impostazione predefinita per non dare apparenza legittima ai tentativi di phishing."
+      },
       "keyboard_shortcuts": {
         "label": "Scorciatoie da tastiera",
         "description": "Visualizza le scorciatoie da tastiera disponibili",
@@ -1586,6 +1590,43 @@
     "items_selected": "{count} messaggi selezionati",
     "edit_draft": "Modifica bozza"
   },
+  "mailbox_context_menu": {
+    "mark_folder_read": "Mark folder as read",
+    "mark_folder_tree_read": "Mark folder & subfolders as read",
+    "mark_all_folders_read": "Mark all folders as read",
+    "new_subfolder": "New subfolder...",
+    "new_folder": "New folder...",
+    "rename": "Rename...",
+    "empty_folder": "Empty folder",
+    "empty_folder_generic": "Empty folder",
+    "delete_folder": "Delete folder",
+    "refresh": "Refresh",
+    "mark_all_confirm_title": "Mark all folders as read",
+    "mark_all_confirm_message": "Mark every unread message in your personal account as read?",
+    "delete_confirm_title": "Delete folder",
+    "delete_confirm_message": "Permanently delete the folder \"{name}\"? This action cannot be undone.",
+    "prompt_new_subfolder": "Enter a name for the new subfolder.",
+    "prompt_new_folder": "Enter a name for the new folder.",
+    "prompt_rename": "Enter a new name for this folder.",
+    "toast_marked_read": "Folder marked as read",
+    "toast_marked_read_count": "Marked {count, plural, one {1 message} other {# messages}} as read",
+    "toast_already_read": "No unread messages",
+    "toast_marked_all_read": "All folders marked as read",
+    "toast_emptied": "Folder emptied",
+    "toast_folder_created": "Folder created",
+    "toast_folder_renamed": "Folder renamed",
+    "toast_folder_deleted": "Folder deleted",
+    "toast_error_mark_read": "Failed to mark as read",
+    "toast_error_empty": "Failed to empty folder",
+    "toast_error_create": "Failed to create folder",
+    "toast_error_rename": "Failed to rename folder",
+    "toast_error_delete": "Failed to delete folder",
+    "toast_error_delete_has_children": "Folder has subfolders. Remove them first.",
+    "toast_error_delete_has_email": "Folder is not empty. Empty it first.",
+    "placeholder_folder_name": "Folder name",
+    "create": "Create",
+    "rename_confirm": "Rename"
+  },
   "shortcuts": {
     "title": "Scorciatoie da tastiera",
     "tip": "Premi ? in qualsiasi momento per mostrare questo aiuto",
@@ -1774,7 +1815,13 @@
       "renamed": "Rubrica rinominata",
       "rename_failed": "Impossibile rinominare la rubrica",
       "default": "Predefinita",
-      "manage": "Gestisci rubriche"
+      "manage": "Gestisci rubriche",
+      "share": "Condividi rubrica",
+      "new_contact_in_book": "Nuovo contatto in questa rubrica",
+      "delete": "Elimina rubrica",
+      "confirm_delete": "Eliminare \"{name}\"? Tutti i contatti in questa rubrica verranno rimossi.",
+      "deleted": "Rubrica eliminata",
+      "delete_failed": "Impossibile eliminare la rubrica"
     },
     "detail": {
       "emails": "Indirizzi email",
@@ -2299,7 +2346,9 @@
       "confirm_clear": "Cancellare tutti gli eventi da \"{name}\"? Questa azione non può essere annullata.",
       "clear_events": "Cancella eventi",
       "events_cleared": "{count} eventi cancellati",
-      "error_clear": "Impossibile cancellare gli eventi del calendario"
+      "error_clear": "Impossibile cancellare gli eventi del calendario",
+      "share": "Condividi calendario",
+      "new_event_in_calendar": "Nuovo evento in questo calendario"
     },
     "subscription": {
       "title": "Abbonamento iCal",
@@ -2665,5 +2714,28 @@
   },
   "unified_mailbox": {
     "search_unavailable": "La ricerca non è disponibile nella vista unificata"
+  },
+  "sharing": {
+    "title": "Condividi \"{name}\"",
+    "description": "Concedi l'accesso ad altri utenti o gruppi su questo server. Le modifiche hanno effetto immediato.",
+    "no_shares": "Non ancora condiviso.",
+    "add_person": "Aggiungi persona o gruppo",
+    "search_placeholder": "Cerca per nome o email…",
+    "loading_principals": "Caricamento utenti…",
+    "no_principals": "Nessun altro utente o gruppo trovato.",
+    "no_match": "Nessun risultato.",
+    "remove": "Rimuovi accesso",
+    "group": "Gruppo",
+    "share_added": "Accesso concesso",
+    "share_updated": "Accesso aggiornato",
+    "share_removed": "Accesso rimosso",
+    "share_failed": "Impossibile aggiornare la condivisione",
+    "preset": {
+      "freeBusy": "Solo libero/occupato",
+      "read": "Sola lettura",
+      "readWrite": "Lettura e scrittura",
+      "manager": "Gestore",
+      "custom": "Personalizzato"
+    }
   }
 }

locales/ja/common.json

@@ -1285,6 +1285,10 @@
         "label": "送信者ファビコン（実験的）",
         "description": "ビジネス送信者のプロフィール画像としてウェブサイトアイコンを表示"
       },
+      "show_avatars_in_junk": {
+        "label": "迷惑メールフォルダでアバターを表示",
+        "description": "迷惑メールフォルダの送信者にプロフィール画像とファビコンを表示します。フィッシング詐欺に正規のような見た目を与えないため、既定では無効です。"
+      },
       "keyboard_shortcuts": {
         "label": "キーボードショートカット",
         "description": "利用可能なキーボードショートカットを表示",
@@ -1586,6 +1590,43 @@
     "items_selected": "{count}件のメールを選択",
     "edit_draft": "下書きを編集"
   },
+  "mailbox_context_menu": {
+    "mark_folder_read": "Mark folder as read",
+    "mark_folder_tree_read": "Mark folder & subfolders as read",
+    "mark_all_folders_read": "Mark all folders as read",
+    "new_subfolder": "New subfolder...",
+    "new_folder": "New folder...",
+    "rename": "Rename...",
+    "empty_folder": "Empty folder",
+    "empty_folder_generic": "Empty folder",
+    "delete_folder": "Delete folder",
+    "refresh": "Refresh",
+    "mark_all_confirm_title": "Mark all folders as read",
+    "mark_all_confirm_message": "Mark every unread message in your personal account as read?",
+    "delete_confirm_title": "Delete folder",
+    "delete_confirm_message": "Permanently delete the folder \"{name}\"? This action cannot be undone.",
+    "prompt_new_subfolder": "Enter a name for the new subfolder.",
+    "prompt_new_folder": "Enter a name for the new folder.",
+    "prompt_rename": "Enter a new name for this folder.",
+    "toast_marked_read": "Folder marked as read",
+    "toast_marked_read_count": "Marked {count, plural, one {1 message} other {# messages}} as read",
+    "toast_already_read": "No unread messages",
+    "toast_marked_all_read": "All folders marked as read",
+    "toast_emptied": "Folder emptied",
+    "toast_folder_created": "Folder created",
+    "toast_folder_renamed": "Folder renamed",
+    "toast_folder_deleted": "Folder deleted",
+    "toast_error_mark_read": "Failed to mark as read",
+    "toast_error_empty": "Failed to empty folder",
+    "toast_error_create": "Failed to create folder",
+    "toast_error_rename": "Failed to rename folder",
+    "toast_error_delete": "Failed to delete folder",
+    "toast_error_delete_has_children": "Folder has subfolders. Remove them first.",
+    "toast_error_delete_has_email": "Folder is not empty. Empty it first.",
+    "placeholder_folder_name": "Folder name",
+    "create": "Create",
+    "rename_confirm": "Rename"
+  },
   "shortcuts": {
     "title": "キーボードショートカット",
     "tip": "? キーを押すといつでもこのヘルプを表示できます",
@@ -1774,7 +1815,13 @@
       "renamed": "アドレス帳の名前を変更しました",
       "rename_failed": "アドレス帳の名前変更に失敗しました",
       "default": "デフォルト",
-      "manage": "アドレス帳を管理"
+      "manage": "アドレス帳を管理",
+      "share": "アドレス帳を共有",
+      "new_contact_in_book": "このアドレス帳に新規連絡先",
+      "delete": "アドレス帳を削除",
+      "confirm_delete": "「{name}」を削除しますか？このアドレス帳のすべての連絡先が削除されます。",
+      "deleted": "アドレス帳を削除しました",
+      "delete_failed": "アドレス帳の削除に失敗しました"
     },
     "detail": {
       "emails": "メールアドレス",
@@ -2299,7 +2346,9 @@
       "confirm_clear": "\"{name}\"のすべてのイベントを削除しますか？この操作は元に戻せません。",
       "clear_events": "イベントを削除",
       "events_cleared": "{count}件のイベントを削除しました",
-      "error_clear": "カレンダーイベントの削除に失敗しました"
+      "error_clear": "カレンダーイベントの削除に失敗しました",
+      "share": "カレンダーを共有",
+      "new_event_in_calendar": "このカレンダーに新規イベント"
     },
     "subscription": {
       "title": "iCal購読",
@@ -2665,5 +2714,28 @@
   },
   "unified_mailbox": {
     "search_unavailable": "統合ビューでは検索を利用できません"
+  },
+  "sharing": {
+    "title": "「{name}」を共有",
+    "description": "このサーバー上の他のユーザーまたはグループにアクセス権を付与します。変更はすぐに反映されます。",
+    "no_shares": "まだ誰にも共有されていません。",
+    "add_person": "ユーザーまたはグループを追加",
+    "search_placeholder": "名前またはメールで検索…",
+    "loading_principals": "ユーザーを読み込み中…",
+    "no_principals": "他のユーザーまたはグループは見つかりません。",
+    "no_match": "一致する項目がありません。",
+    "remove": "アクセス権を削除",
+    "group": "グループ",
+    "share_added": "アクセス権を付与しました",
+    "share_updated": "アクセス権を更新しました",
+    "share_removed": "アクセス権を削除しました",
+    "share_failed": "共有の更新に失敗しました",
+    "preset": {
+      "freeBusy": "空き時間情報のみ",
+      "read": "読み取り専用",
+      "readWrite": "読み取り・書き込み",
+      "manager": "管理者",
+      "custom": "カスタム"
+    }
   }
 }

locales/ko/common.json

@@ -1285,6 +1285,10 @@
         "label": "보낸 사람 파비콘 (실험적 기능)",
         "description": "비즈니스 메일의 경우 해당 웹사이트의 아이콘을 프로필 사진으로 보여줘요"
       },
+      "show_avatars_in_junk": {
+        "label": "스팸함에서 아바타 표시",
+        "description": "스팸함의 보낸 사람에 대한 프로필 이미지와 파비콘을 표시해요. 피싱 메일이 정상적인 메일처럼 보이지 않도록 기본적으로 꺼져 있어요."
+      },
       "keyboard_shortcuts": {
         "label": "단축키",
         "description": "사용 가능한 키보드 단축키를 확인해 보세요",
@@ -1586,6 +1590,43 @@
     "items_selected": "{count}개의 메일 선택됨",
     "edit_draft": "임시보관 메일 수정"
   },
+  "mailbox_context_menu": {
+    "mark_folder_read": "Mark folder as read",
+    "mark_folder_tree_read": "Mark folder & subfolders as read",
+    "mark_all_folders_read": "Mark all folders as read",
+    "new_subfolder": "New subfolder...",
+    "new_folder": "New folder...",
+    "rename": "Rename...",
+    "empty_folder": "Empty folder",
+    "empty_folder_generic": "Empty folder",
+    "delete_folder": "Delete folder",
+    "refresh": "Refresh",
+    "mark_all_confirm_title": "Mark all folders as read",
+    "mark_all_confirm_message": "Mark every unread message in your personal account as read?",
+    "delete_confirm_title": "Delete folder",
+    "delete_confirm_message": "Permanently delete the folder \"{name}\"? This action cannot be undone.",
+    "prompt_new_subfolder": "Enter a name for the new subfolder.",
+    "prompt_new_folder": "Enter a name for the new folder.",
+    "prompt_rename": "Enter a new name for this folder.",
+    "toast_marked_read": "Folder marked as read",
+    "toast_marked_read_count": "Marked {count, plural, one {1 message} other {# messages}} as read",
+    "toast_already_read": "No unread messages",
+    "toast_marked_all_read": "All folders marked as read",
+    "toast_emptied": "Folder emptied",
+    "toast_folder_created": "Folder created",
+    "toast_folder_renamed": "Folder renamed",
+    "toast_folder_deleted": "Folder deleted",
+    "toast_error_mark_read": "Failed to mark as read",
+    "toast_error_empty": "Failed to empty folder",
+    "toast_error_create": "Failed to create folder",
+    "toast_error_rename": "Failed to rename folder",
+    "toast_error_delete": "Failed to delete folder",
+    "toast_error_delete_has_children": "Folder has subfolders. Remove them first.",
+    "toast_error_delete_has_email": "Folder is not empty. Empty it first.",
+    "placeholder_folder_name": "Folder name",
+    "create": "Create",
+    "rename_confirm": "Rename"
+  },
   "shortcuts": {
     "title": "단축키",
     "tip": "언제든 ? 키를 누르면 이 도움말을 볼 수 있어요",
@@ -1774,7 +1815,13 @@
       "renamed": "주소록 이름이 변경되었습니다",
       "rename_failed": "주소록 이름 변경 실패",
       "default": "기본",
-      "manage": "주소록 관리"
+      "manage": "주소록 관리",
+      "share": "주소록 공유",
+      "new_contact_in_book": "이 주소록에 새 연락처",
+      "delete": "주소록 삭제",
+      "confirm_delete": "\"{name}\"을(를) 삭제하시겠습니까? 이 주소록의 모든 연락처가 삭제됩니다.",
+      "deleted": "주소록이 삭제되었습니다",
+      "delete_failed": "주소록 삭제에 실패했습니다"
     },
     "detail": {
       "emails": "이메일",
@@ -2299,7 +2346,9 @@
       "error_delete": "캘린더를 삭제하지 못했어요",
       "caldav_url": "CalDAV URL",
       "copy_url": "CalDAV URL 복사",
-      "url_copied": "CalDAV URL이 클립보드에 복사되었어요"
+      "url_copied": "CalDAV URL이 클립보드에 복사되었어요",
+      "share": "캘린더 공유",
+      "new_event_in_calendar": "이 캘린더에 새 일정"
     },
     "subscription": {
       "title": "iCal 구독",
@@ -2665,5 +2714,28 @@
   },
   "unified_mailbox": {
     "search_unavailable": "통합 보기에서는 검색을 사용할 수 없습니다"
+  },
+  "sharing": {
+    "title": "\"{name}\" 공유",
+    "description": "이 서버의 다른 사용자나 그룹에 액세스 권한을 부여합니다. 변경 사항은 즉시 적용됩니다.",
+    "no_shares": "아직 공유되지 않았습니다.",
+    "add_person": "사용자 또는 그룹 추가",
+    "search_placeholder": "이름 또는 이메일로 검색…",
+    "loading_principals": "사용자 불러오는 중…",
+    "no_principals": "다른 사용자나 그룹을 찾을 수 없습니다.",
+    "no_match": "일치하는 항목이 없습니다.",
+    "remove": "액세스 권한 제거",
+    "group": "그룹",
+    "share_added": "액세스 권한이 부여되었습니다",
+    "share_updated": "액세스 권한이 업데이트되었습니다",
+    "share_removed": "액세스 권한이 제거되었습니다",
+    "share_failed": "공유 업데이트에 실패했습니다",
+    "preset": {
+      "freeBusy": "한가함/바쁨만",
+      "read": "읽기 전용",
+      "readWrite": "읽기 및 쓰기",
+      "manager": "관리자",
+      "custom": "사용자 지정"
+    }
   }
 }

locales/lv/common.json

@@ -1266,6 +1266,10 @@
         "label": "Sūtītāju ikonas (Eksperimentāli)",
         "description": "Rādīt vietņu ikonas kā sūtītāju avatarus"
       },
+      "show_avatars_in_junk": {
+        "label": "Rādīt avatarus mēstuļu mapē",
+        "description": "Rādīt sūtītāju profila attēlus un ikonas mēstuļu mapē. Pēc noklusējuma izslēgts, lai pikšķerēšanas mēģinājumi neizskatītos uzticami."
+      },
       "keyboard_shortcuts": {
         "label": "Īsinājumtaustiņi",
         "description": "Skatīt pieejamos tastatūras īsinājumtaustiņus",
@@ -1586,6 +1590,43 @@
     "items_selected": "{count} vēstules atlasītas",
     "edit_draft": "Rediģēt melnrakstu"
   },
+  "mailbox_context_menu": {
+    "mark_folder_read": "Mark folder as read",
+    "mark_folder_tree_read": "Mark folder & subfolders as read",
+    "mark_all_folders_read": "Mark all folders as read",
+    "new_subfolder": "New subfolder...",
+    "new_folder": "New folder...",
+    "rename": "Rename...",
+    "empty_folder": "Empty folder",
+    "empty_folder_generic": "Empty folder",
+    "delete_folder": "Delete folder",
+    "refresh": "Refresh",
+    "mark_all_confirm_title": "Mark all folders as read",
+    "mark_all_confirm_message": "Mark every unread message in your personal account as read?",
+    "delete_confirm_title": "Delete folder",
+    "delete_confirm_message": "Permanently delete the folder \"{name}\"? This action cannot be undone.",
+    "prompt_new_subfolder": "Enter a name for the new subfolder.",
+    "prompt_new_folder": "Enter a name for the new folder.",
+    "prompt_rename": "Enter a new name for this folder.",
+    "toast_marked_read": "Folder marked as read",
+    "toast_marked_read_count": "Marked {count, plural, one {1 message} other {# messages}} as read",
+    "toast_already_read": "No unread messages",
+    "toast_marked_all_read": "All folders marked as read",
+    "toast_emptied": "Folder emptied",
+    "toast_folder_created": "Folder created",
+    "toast_folder_renamed": "Folder renamed",
+    "toast_folder_deleted": "Folder deleted",
+    "toast_error_mark_read": "Failed to mark as read",
+    "toast_error_empty": "Failed to empty folder",
+    "toast_error_create": "Failed to create folder",
+    "toast_error_rename": "Failed to rename folder",
+    "toast_error_delete": "Failed to delete folder",
+    "toast_error_delete_has_children": "Folder has subfolders. Remove them first.",
+    "toast_error_delete_has_email": "Folder is not empty. Empty it first.",
+    "placeholder_folder_name": "Folder name",
+    "create": "Create",
+    "rename_confirm": "Rename"
+  },
   "shortcuts": {
     "title": "Īsinājumtaustiņi",
     "tip": "Nospiediet ? jebkurā laikā, lai skatītu palīdzību",
@@ -1770,7 +1811,13 @@
       "renamed": "Adrešu grāmata pārdēvēta",
       "rename_failed": "Neizdevās pārdēvēt adrešu grāmatu",
       "default": "Noklusējuma",
-      "manage": "Pārvaldīt adrešu grāmatas"
+      "manage": "Pārvaldīt adrešu grāmatas",
+      "share": "Kopīgot adrešu grāmatu",
+      "new_contact_in_book": "Jauns kontakts šajā adrešu grāmatā",
+      "delete": "Dzēst adrešu grāmatu",
+      "confirm_delete": "Dzēst \"{name}\"? Visi kontakti šajā adrešu grāmatā tiks noņemti.",
+      "deleted": "Adrešu grāmata dzēsta",
+      "delete_failed": "Neizdevās dzēst adrešu grāmatu"
     },
     "detail": {
       "emails": "E-pasta adreses",
@@ -2298,7 +2345,9 @@
       "error_delete": "Neizdevās izdzēst kalendāru",
       "caldav_url": "CalDAV URL",
       "copy_url": "Kopēt CalDAV URL",
-      "url_copied": "CalDAV URL nokopēts starpliktuvē"
+      "url_copied": "CalDAV URL nokopēts starpliktuvē",
+      "share": "Kopīgot kalendāru",
+      "new_event_in_calendar": "Jauns notikums šajā kalendārā"
     },
     "subscription": {
       "title": "iCal abonements",
@@ -2665,5 +2714,28 @@
   },
   "unified_mailbox": {
     "search_unavailable": "Meklēšana nav pieejama apvienotajā skatā"
+  },
+  "sharing": {
+    "title": "Kopīgot \"{name}\"",
+    "description": "Piešķiriet piekļuvi citiem lietotājiem vai grupām šajā serverī. Izmaiņas stājas spēkā nekavējoties.",
+    "no_shares": "Vēl nav kopīgots.",
+    "add_person": "Pievienot personu vai grupu",
+    "search_placeholder": "Meklēt pēc vārda vai e-pasta…",
+    "loading_principals": "Ielādē lietotājus…",
+    "no_principals": "Citi lietotāji vai grupas nav atrastas.",
+    "no_match": "Nav atbilstību.",
+    "remove": "Noņemt piekļuvi",
+    "group": "Grupa",
+    "share_added": "Piekļuve piešķirta",
+    "share_updated": "Piekļuve atjaunināta",
+    "share_removed": "Piekļuve noņemta",
+    "share_failed": "Neizdevās atjaunināt kopīgošanu",
+    "preset": {
+      "freeBusy": "Tikai brīvs/aizņemts",
+      "read": "Tikai lasīšana",
+      "readWrite": "Lasīšana un rakstīšana",
+      "manager": "Pārvaldnieks",
+      "custom": "Pielāgots"
+    }
   }
 }

locales/nl/common.json

@@ -1285,6 +1285,10 @@
         "label": "Afzender-favicons (Experimenteel)",
         "description": "Toon websitepictogrammen als profielfoto's voor zakelijke afzenders"
       },
+      "show_avatars_in_junk": {
+        "label": "Avatars tonen in de map ongewenst",
+        "description": "Toon profielfoto's en favicons van afzenders in de map ongewenst. Standaard uitgeschakeld zodat phishingpogingen geen vertrouwd uiterlijk krijgen."
+      },
       "keyboard_shortcuts": {
         "label": "Sneltoetsen",
         "description": "Bekijk beschikbare sneltoetsen",
@@ -1586,6 +1590,43 @@
     "items_selected": "{count} e-mails geselecteerd",
     "edit_draft": "Concept bewerken"
   },
+  "mailbox_context_menu": {
+    "mark_folder_read": "Mark folder as read",
+    "mark_folder_tree_read": "Mark folder & subfolders as read",
+    "mark_all_folders_read": "Mark all folders as read",
+    "new_subfolder": "New subfolder...",
+    "new_folder": "New folder...",
+    "rename": "Rename...",
+    "empty_folder": "Empty folder",
+    "empty_folder_generic": "Empty folder",
+    "delete_folder": "Delete folder",
+    "refresh": "Refresh",
+    "mark_all_confirm_title": "Mark all folders as read",
+    "mark_all_confirm_message": "Mark every unread message in your personal account as read?",
+    "delete_confirm_title": "Delete folder",
+    "delete_confirm_message": "Permanently delete the folder \"{name}\"? This action cannot be undone.",
+    "prompt_new_subfolder": "Enter a name for the new subfolder.",
+    "prompt_new_folder": "Enter a name for the new folder.",
+    "prompt_rename": "Enter a new name for this folder.",
+    "toast_marked_read": "Folder marked as read",
+    "toast_marked_read_count": "Marked {count, plural, one {1 message} other {# messages}} as read",
+    "toast_already_read": "No unread messages",
+    "toast_marked_all_read": "All folders marked as read",
+    "toast_emptied": "Folder emptied",
+    "toast_folder_created": "Folder created",
+    "toast_folder_renamed": "Folder renamed",
+    "toast_folder_deleted": "Folder deleted",
+    "toast_error_mark_read": "Failed to mark as read",
+    "toast_error_empty": "Failed to empty folder",
+    "toast_error_create": "Failed to create folder",
+    "toast_error_rename": "Failed to rename folder",
+    "toast_error_delete": "Failed to delete folder",
+    "toast_error_delete_has_children": "Folder has subfolders. Remove them first.",
+    "toast_error_delete_has_email": "Folder is not empty. Empty it first.",
+    "placeholder_folder_name": "Folder name",
+    "create": "Create",
+    "rename_confirm": "Rename"
+  },
   "shortcuts": {
     "title": "Sneltoetsen",
     "tip": "Druk op ? om deze hulp te tonen",
@@ -1774,7 +1815,13 @@
       "renamed": "Adresboek hernoemd",
       "rename_failed": "Adresboek hernoemen mislukt",
       "default": "Standaard",
-      "manage": "Adresboeken beheren"
+      "manage": "Adresboeken beheren",
+      "share": "Adresboek delen",
+      "new_contact_in_book": "Nieuw contact in dit adresboek",
+      "delete": "Adresboek verwijderen",
+      "confirm_delete": "\"{name}\" verwijderen? Alle contacten in dit adresboek worden verwijderd.",
+      "deleted": "Adresboek verwijderd",
+      "delete_failed": "Adresboek kon niet worden verwijderd"
     },
     "detail": {
       "emails": "E-mailadressen",
@@ -2299,7 +2346,9 @@
       "confirm_clear": "Alle afspraken uit \"{name}\" verwijderen? Dit kan niet ongedaan worden gemaakt.",
       "clear_events": "Afspraken verwijderen",
       "events_cleared": "{count} afspraken verwijderd",
-      "error_clear": "Kan agendagebeurtenissen niet verwijderen"
+      "error_clear": "Kan agendagebeurtenissen niet verwijderen",
+      "share": "Agenda delen",
+      "new_event_in_calendar": "Nieuwe afspraak in deze agenda"
     },
     "subscription": {
       "title": "iCal-abonnement",
@@ -2665,5 +2714,28 @@
   },
   "unified_mailbox": {
     "search_unavailable": "Zoeken is niet beschikbaar in de gecombineerde weergave"
+  },
+  "sharing": {
+    "title": "\"{name}\" delen",
+    "description": "Geef andere gebruikers of groepen op deze server toegang. Wijzigingen zijn direct van kracht.",
+    "no_shares": "Nog niet gedeeld.",
+    "add_person": "Persoon of groep toevoegen",
+    "search_placeholder": "Zoeken op naam of e-mail…",
+    "loading_principals": "Gebruikers laden…",
+    "no_principals": "Geen andere gebruikers of groepen gevonden.",
+    "no_match": "Geen overeenkomsten.",
+    "remove": "Toegang intrekken",
+    "group": "Groep",
+    "share_added": "Toegang verleend",
+    "share_updated": "Toegang bijgewerkt",
+    "share_removed": "Toegang ingetrokken",
+    "share_failed": "Delen kon niet worden bijgewerkt",
+    "preset": {
+      "freeBusy": "Alleen vrij/bezet",
+      "read": "Alleen lezen",
+      "readWrite": "Lezen en schrijven",
+      "manager": "Beheerder",
+      "custom": "Aangepast"
+    }
   }
 }

locales/pl/common.json

@@ -1285,6 +1285,10 @@
         "label": "Favikony nadawców (eksperymentalne)",
         "description": "Pokazuj ikony stron internetowych jako zdjęcia profilowe nadawców firmowych"
       },
+      "show_avatars_in_junk": {
+        "label": "Pokazuj awatary w folderze spam",
+        "description": "Pokazuj zdjęcia profilowe i favikony nadawców w folderze spam. Domyślnie wyłączone, aby próby phishingu nie wyglądały na wiarygodne."
+      },
       "keyboard_shortcuts": {
         "label": "Skróty klawiszowe",
         "description": "Wyświetl dostępne skróty klawiszowe",
@@ -1586,6 +1590,43 @@
     "items_selected": "{count} zaznaczonych wiadomości",
     "edit_draft": "Edytuj szkic"
   },
+  "mailbox_context_menu": {
+    "mark_folder_read": "Mark folder as read",
+    "mark_folder_tree_read": "Mark folder & subfolders as read",
+    "mark_all_folders_read": "Mark all folders as read",
+    "new_subfolder": "New subfolder...",
+    "new_folder": "New folder...",
+    "rename": "Rename...",
+    "empty_folder": "Empty folder",
+    "empty_folder_generic": "Empty folder",
+    "delete_folder": "Delete folder",
+    "refresh": "Refresh",
+    "mark_all_confirm_title": "Mark all folders as read",
+    "mark_all_confirm_message": "Mark every unread message in your personal account as read?",
+    "delete_confirm_title": "Delete folder",
+    "delete_confirm_message": "Permanently delete the folder \"{name}\"? This action cannot be undone.",
+    "prompt_new_subfolder": "Enter a name for the new subfolder.",
+    "prompt_new_folder": "Enter a name for the new folder.",
+    "prompt_rename": "Enter a new name for this folder.",
+    "toast_marked_read": "Folder marked as read",
+    "toast_marked_read_count": "Marked {count, plural, one {1 message} other {# messages}} as read",
+    "toast_already_read": "No unread messages",
+    "toast_marked_all_read": "All folders marked as read",
+    "toast_emptied": "Folder emptied",
+    "toast_folder_created": "Folder created",
+    "toast_folder_renamed": "Folder renamed",
+    "toast_folder_deleted": "Folder deleted",
+    "toast_error_mark_read": "Failed to mark as read",
+    "toast_error_empty": "Failed to empty folder",
+    "toast_error_create": "Failed to create folder",
+    "toast_error_rename": "Failed to rename folder",
+    "toast_error_delete": "Failed to delete folder",
+    "toast_error_delete_has_children": "Folder has subfolders. Remove them first.",
+    "toast_error_delete_has_email": "Folder is not empty. Empty it first.",
+    "placeholder_folder_name": "Folder name",
+    "create": "Create",
+    "rename_confirm": "Rename"
+  },
   "shortcuts": {
     "title": "Skróty klawiszowe",
     "tip": "Naciśnij ? w dowolnym momencie, aby wyświetlić tę pomoc",
@@ -1774,7 +1815,13 @@
       "renamed": "Zmieniono nazwę książki adresowej",
       "rename_failed": "Nie udało się zmienić nazwy książki adresowej",
       "default": "Domyślna",
-      "manage": "Zarządzaj książkami adresowymi"
+      "manage": "Zarządzaj książkami adresowymi",
+      "share": "Udostępnij książkę adresową",
+      "new_contact_in_book": "Nowy kontakt w tej książce adresowej",
+      "delete": "Usuń książkę adresową",
+      "confirm_delete": "Usunąć „{name}\"? Wszystkie kontakty w tej książce adresowej zostaną usunięte.",
+      "deleted": "Książka adresowa usunięta",
+      "delete_failed": "Nie udało się usunąć książki adresowej"
     },
     "detail": {
       "emails": "Adresy e-mail",
@@ -2299,7 +2346,9 @@
       "error_delete": "Nie udało się usunąć kalendarza",
       "caldav_url": "Adres URL CalDAV",
       "copy_url": "Kopiuj adres URL CalDAV",
-      "url_copied": "Adres URL CalDAV skopiowano do schowka"
+      "url_copied": "Adres URL CalDAV skopiowano do schowka",
+      "share": "Udostępnij kalendarz",
+      "new_event_in_calendar": "Nowe wydarzenie w tym kalendarzu"
     },
     "subscription": {
       "title": "Subskrypcja iCal",
@@ -2665,5 +2714,28 @@
   },
   "unified_mailbox": {
     "search_unavailable": "Wyszukiwanie jest niedostępne w widoku ujednoliconym"
+  },
+  "sharing": {
+    "title": "Udostępnij „{name}\"",
+    "description": "Udziel dostępu innym użytkownikom lub grupom na tym serwerze. Zmiany są natychmiastowe.",
+    "no_shares": "Jeszcze nie udostępniono.",
+    "add_person": "Dodaj osobę lub grupę",
+    "search_placeholder": "Szukaj po imieniu lub e-mailu…",
+    "loading_principals": "Ładowanie użytkowników…",
+    "no_principals": "Nie znaleziono innych użytkowników ani grup.",
+    "no_match": "Brak wyników.",
+    "remove": "Usuń dostęp",
+    "group": "Grupa",
+    "share_added": "Dostęp przyznany",
+    "share_updated": "Dostęp zaktualizowany",
+    "share_removed": "Dostęp usunięty",
+    "share_failed": "Nie udało się zaktualizować udostępniania",
+    "preset": {
+      "freeBusy": "Tylko dostępność",
+      "read": "Tylko do odczytu",
+      "readWrite": "Odczyt i zapis",
+      "manager": "Menedżer",
+      "custom": "Niestandardowe"
+    }
   }
 }

locales/pt/common.json

@@ -20,7 +20,7 @@
       "generic": "Ocorreu um erro. Por favor, tente novamente.",
       "totp_required": "É necessário um código de autenticação de dois fatores. Insira seu código abaixo.",
       "totp_invalid": "Código de autenticação inválido. Verifique seu aplicativo de autenticação.",
-      "oauth_discovery_failed": "SSO está ativado mas o provedor de identidade não pôde ser contactado. Verifique sua configuração OAuth."
+      "oauth_discovery_failed": "SSO está ativado mas o provedor de identidade não pôde ser contatado. Verifique sua configuração OAuth."
     },
     "show_password": "Mostrar senha",
     "hide_password": "Ocultar senha",
@@ -80,7 +80,7 @@
     "calendar": "Calendário",
     "settings": "Configurações",
     "admin": "Admin",
-    "files": "Ficheiros",
+    "files": "Arquivos",
     "loading_mailboxes": "Carregando caixas de entrada...",
     "push_connected": "Atualizações em tempo real ativas",
     "push_disconnected": "Atualizações em tempo real inativas",
@@ -505,7 +505,7 @@
     "show_less": "Mostrar menos",
     "forgot_attachment": {
       "title": "Esqueceu um anexo?",
-      "message": "A sua mensagem menciona \"{keyword}\" mas nenhum ficheiro está anexado. Enviar mesmo assim?",
+      "message": "A sua mensagem menciona \"{keyword}\" mas nenhum arquivo está anexado. Enviar mesmo assim?",
       "send_anyway": "Enviar mesmo assim",
       "back": "Voltar à edição"
     }
@@ -669,7 +669,7 @@
       "security": "Segurança",
       "encryption": "Criptografia",
       "files": "Arquivos",
-      "contacts": "Contactos",
+      "contacts": "Contatos",
       "sidebar_apps": "Apps da barra lateral",
       "notifications": "Notificações",
       "layout": "Layout",
@@ -1285,6 +1285,10 @@
         "label": "Favicons de remetente (Experimental)",
         "description": "Exibir ícones de sites como fotos de perfil para remetentes empresariais"
       },
+      "show_avatars_in_junk": {
+        "label": "Mostrar avatares na pasta de spam",
+        "description": "Exibir imagens de perfil e favicons dos remetentes na pasta de spam. Desativado por padrão para não dar aparência legítima a tentativas de phishing."
+      },
       "keyboard_shortcuts": {
         "label": "Atalhos de Teclado",
         "description": "Visualizar atalhos de teclado disponíveis",
@@ -1318,12 +1322,12 @@
       "manage_description": "Adicionar, editar ou remover apps personalizados da barra lateral"
     },
     "contacts": {
-      "title": "Contactos",
-      "description": "Importar e exportar os seus contactos",
-      "import_label": "Importar contactos",
-      "import_description": "Importar contactos de um ficheiro vCard (.vcf)",
-      "export_label": "Exportar contactos",
-      "export_description": "Exportar todos os contactos como ficheiro vCard (.vcf)",
+      "title": "Contatos",
+      "description": "Importar e exportar os seus contatos",
+      "import_label": "Importar contatos",
+      "import_description": "Importar contatos de um arquivo vCard (.vcf)",
+      "export_label": "Exportar contatos",
+      "export_description": "Exportar todos os contatos como arquivo vCard (.vcf)",
       "manage_title": "Catálogos de endereços",
       "manage_description": "Renomeie seus catálogos de endereços",
       "no_address_books": "Nenhum catálogo de endereços encontrado",
@@ -1499,7 +1503,7 @@
       },
       "folder_layout": {
         "label": "Navegação de pastas",
-        "description": "Escolha como as pastas são apresentadas: integradas com os ficheiros ou numa árvore na barra lateral",
+        "description": "Escolha como as pastas são apresentadas: integradas com os arquivos ou numa árvore na barra lateral",
         "inline": "Integrado",
         "sidebar": "Barra lateral"
       },
@@ -1586,6 +1590,43 @@
     "items_selected": "{count} e-mails selecionados",
     "edit_draft": "Editar rascunho"
   },
+  "mailbox_context_menu": {
+    "mark_folder_read": "Mark folder as read",
+    "mark_folder_tree_read": "Mark folder & subfolders as read",
+    "mark_all_folders_read": "Mark all folders as read",
+    "new_subfolder": "New subfolder...",
+    "new_folder": "New folder...",
+    "rename": "Rename...",
+    "empty_folder": "Empty folder",
+    "empty_folder_generic": "Empty folder",
+    "delete_folder": "Delete folder",
+    "refresh": "Refresh",
+    "mark_all_confirm_title": "Mark all folders as read",
+    "mark_all_confirm_message": "Mark every unread message in your personal account as read?",
+    "delete_confirm_title": "Delete folder",
+    "delete_confirm_message": "Permanently delete the folder \"{name}\"? This action cannot be undone.",
+    "prompt_new_subfolder": "Enter a name for the new subfolder.",
+    "prompt_new_folder": "Enter a name for the new folder.",
+    "prompt_rename": "Enter a new name for this folder.",
+    "toast_marked_read": "Folder marked as read",
+    "toast_marked_read_count": "Marked {count, plural, one {1 message} other {# messages}} as read",
+    "toast_already_read": "No unread messages",
+    "toast_marked_all_read": "All folders marked as read",
+    "toast_emptied": "Folder emptied",
+    "toast_folder_created": "Folder created",
+    "toast_folder_renamed": "Folder renamed",
+    "toast_folder_deleted": "Folder deleted",
+    "toast_error_mark_read": "Failed to mark as read",
+    "toast_error_empty": "Failed to empty folder",
+    "toast_error_create": "Failed to create folder",
+    "toast_error_rename": "Failed to rename folder",
+    "toast_error_delete": "Failed to delete folder",
+    "toast_error_delete_has_children": "Folder has subfolders. Remove them first.",
+    "toast_error_delete_has_email": "Folder is not empty. Empty it first.",
+    "placeholder_folder_name": "Folder name",
+    "create": "Create",
+    "rename_confirm": "Rename"
+  },
   "shortcuts": {
     "title": "Atalhos de Teclado",
     "tip": "Pressione ? a qualquer momento para mostrar esta ajuda",
@@ -1774,7 +1815,13 @@
       "renamed": "Catálogo de endereços renomeado",
       "rename_failed": "Falha ao renomear o catálogo de endereços",
       "default": "Padrão",
-      "manage": "Gerenciar catálogos de endereços"
+      "manage": "Gerenciar catálogos de endereços",
+      "share": "Compartilhar lista de contatos",
+      "new_contact_in_book": "Novo contato nesta lista",
+      "delete": "Excluir lista de contatos",
+      "confirm_delete": "Excluir \"{name}\"? Todos os contatos desta lista serão removidos.",
+      "deleted": "Lista de contatos excluída",
+      "delete_failed": "Falha ao excluir a lista de contatos"
     },
     "detail": {
       "emails": "Endereços de e-mail",
@@ -1827,7 +1874,7 @@
       "cert_already_imported": "Certificado já importado",
       "cert_imported": "Certificado importado",
       "cert_import_failed": "Falha ao importar o certificado",
-      "section_contact": "Contact details",
+      "section_contact": "Detalhes do contato",
       "section_work": "Work",
       "section_personal": "Personal",
       "email_default_label": "Email",
@@ -2196,7 +2243,7 @@
       "hover_preview_delay_2s": "Atraso de 2 segundos",
       "hover_preview_off": "Desativado",
       "show_birthday_calendar": "Calendário de aniversários",
-      "show_birthday_calendar_desc": "Mostrar um calendário virtual com os aniversários dos seus contactos"
+      "show_birthday_calendar_desc": "Mostrar um calendário virtual com os aniversários dos seus contatos"
     },
     "days": {
       "monday": "Segunda-feira",
@@ -2299,7 +2346,9 @@
       "confirm_clear": "Limpar todos os eventos de \"{name}\"? Esta ação não pode ser desfeita.",
       "clear_events": "Limpar eventos",
       "events_cleared": "{count} eventos removidos",
-      "error_clear": "Falha ao limpar os eventos do calendário"
+      "error_clear": "Falha ao limpar os eventos do calendário",
+      "share": "Compartilhar calendário",
+      "new_event_in_calendar": "Novo evento neste calendário"
     },
     "subscription": {
       "title": "Assinatura iCal",
@@ -2432,12 +2481,12 @@
     "hint": "Clique num e-mail à esquerda para começar, ou inicie o tour."
   },
   "files": {
-    "title": "Ficheiros",
-    "search_placeholder": "Pesquisar ficheiros...",
-    "empty_state_title": "Ainda não há ficheiros",
-    "empty_state_description": "Carregue ficheiros ou crie pastas para começar",
+    "title": "Arquivos",
+    "search_placeholder": "Pesquisar arquivos...",
+    "empty_state_title": "Ainda não há arquivos",
+    "empty_state_description": "Carregue arquivos ou crie pastas para começar",
     "upload": "Carregar",
-    "upload_files": "Carregar ficheiros",
+    "upload_files": "Carregar arquivos",
     "new_folder": "Nova pasta",
     "new_folder_name": "Nome da pasta",
     "rename": "Renomear",
@@ -2452,13 +2501,13 @@
     "modified": "Modificado",
     "type": "Tipo",
     "folder": "Pasta",
-    "file": "Ficheiro",
+    "file": "Arquivo",
     "parent_directory": "Diretório superior",
     "breadcrumb_root": "Início",
-    "drop_files_here": "Largue ficheiros ou pastas aqui para carregar",
+    "drop_files_here": "Largue arquivos ou pastas aqui para carregar",
     "uploading": "A carregar...",
-    "upload_success": "{count, plural, one {1 ficheiro carregado} other {# ficheiros carregados}}",
-    "upload_error": "Falha ao carregar o ficheiro",
+    "upload_success": "{count, plural, one {1 arquivo carregado} other {# arquivos carregados}}",
+    "upload_error": "Falha ao carregar o arquivo",
     "create_folder_success": "Pasta criada",
     "create_folder_error": "Falha ao criar a pasta",
     "delete_success": "Eliminado com sucesso",
@@ -2466,11 +2515,11 @@
     "rename_success": "Renomeado com sucesso",
     "rename_error": "Falha ao renomear",
     "download_error": "Falha ao transferir",
-    "not_available": "O armazenamento de ficheiros não está disponível neste servidor",
+    "not_available": "O armazenamento de arquivos não está disponível neste servidor",
     "cancel": "Cancelar",
     "create": "Criar",
     "save": "Guardar",
-    "no_results": "Nenhum ficheiro corresponde à sua pesquisa",
+    "no_results": "Nenhum arquivo corresponde à sua pesquisa",
     "batch_delete_confirm_message": "Tem a certeza de que deseja eliminar {count, plural, one {1 item} other {# itens}}? Esta ação não pode ser desfeita.",
     "batch_delete_success": "{count, plural, one {1 item eliminado} other {# itens eliminados}}",
     "grid_view": "Vista em grelha",
@@ -2486,27 +2535,27 @@
     "move_error": "Falha ao mover",
     "paste_success": "Colado com sucesso",
     "paste_error": "Falha ao colar",
-    "new_text_file": "Novo ficheiro de texto",
-    "file_name": "Nome do ficheiro",
+    "new_text_file": "Novo arquivo de texto",
+    "file_name": "Nome do arquivo",
     "retry": "Tentar novamente",
     "refresh": "Atualizar",
     "toggle_favorite": "Alternar favorito",
     "duplicate": "Duplicar",
     "duplicate_success": "Duplicado com sucesso",
     "duplicate_error": "Falha ao duplicar",
-    "create_file_success": "Ficheiro criado",
-    "create_file_error": "Falha ao criar ficheiro",
+    "create_file_success": "Arquivo criado",
+    "create_file_error": "Falha ao criar arquivo",
     "favorites": "Favoritos",
     "recent": "Recentes",
     "properties": "Propriedades",
     "open_folder": "Abrir pasta",
     "upload_folder": "Carregar pasta",
-    "file_too_large": "\"{name}\" excede o tamanho máximo do ficheiro ({max})",
+    "file_too_large": "\"{name}\" excede o tamanho máximo do arquivo ({max})",
     "undo": "Desfazer",
     "undo_success": "Ação desfeita",
     "undo_error": "Falha ao desfazer",
     "toolbar": "Ações de arquivo",
-    "file_list": "Ficheiros e pastas",
+    "file_list": "Arquivos e pastas",
     "context_menu": "Ações",
     "settings_title": "Configurações de arquivos",
     "settings_display": "Exibição",
@@ -2529,7 +2578,7 @@
     "settings_show_hidden": "Mostrar arquivos ocultos",
     "settings_show_hidden_desc": "Exibir arquivos e pastas que começam com um ponto",
     "settings_folder_layout": "Navegação de pastas",
-    "settings_folder_layout_desc": "Escolha como as pastas são apresentadas: integradas com os ficheiros ou numa árvore na barra lateral",
+    "settings_folder_layout_desc": "Escolha como as pastas são apresentadas: integradas com os arquivos ou numa árvore na barra lateral",
     "settings_folder_layout_inline": "Integrado",
     "settings_folder_layout_sidebar": "Barra lateral",
     "disabled_title": "O recurso de arquivos foi desativado pelo seu administrador",
@@ -2654,16 +2703,39 @@
     "event_modal_desc": "Aqui está o formulário do evento. Preencha o título, escolha uma data e hora, adicione um local ou participantes. Clique em salvar quando terminar - ou feche e siga em frente.",
     "contacts_list_title": "Seus contatos",
     "contacts_list_desc": "Aqui estão seus contatos. Clique em qualquer contato para ver seus detalhes à direita. Você também pode criar novos contatos, importar vCards ou organizar contatos em grupos.",
-    "files_title": "Armazenamento de ficheiros",
+    "files_title": "Armazenamento de arquivos",
     "settings_tabs_title": "Menu de configurações",
     "settings_tabs_desc": "Aqui estão todas as categorias de configurações. Personalize a aparência, gerencie identidades, configure filtros de e-mail, ajuste o calendário e muito mais.",
-    "files_desc": "O navegador de ficheiros permite carregar, organizar e partilhar ficheiros - como uma nuvem pessoal integrada no seu e-mail.",
-    "demo_banner_title": "Controlos de demonstração",
+    "files_desc": "O navegador de arquivos permite carregar, organizar e compartilhar arquivos - como uma nuvem pessoal integrada no seu e-mail.",
+    "demo_banner_title": "Controles de demonstração",
     "demo_banner_desc": "Está no modo de demonstração - tudo permanece no seu navegador. Clique em 'Repor Demonstração' a qualquer momento para recomeçar com dados limpos.",
     "quota_title": "Utilização do armazenamento",
     "quota_desc": "Acompanhe o tamanho da sua caixa de correio aqui. O círculo preenche-se à medida que utiliza mais espaço."
   },
   "unified_mailbox": {
     "search_unavailable": "A pesquisa não está disponível na vista unificada"
+  },
+  "sharing": {
+    "title": "Compartilhar \"{name}\"",
+    "description": "Conceda acesso a outros usuários ou grupos neste servidor. As alterações têm efeito imediato.",
+    "no_shares": "Ainda não compartilhado.",
+    "add_person": "Adicionar pessoa ou grupo",
+    "search_placeholder": "Buscar por nome ou e-mail…",
+    "loading_principals": "Carregando usuários…",
+    "no_principals": "Nenhum outro usuário ou grupo encontrado.",
+    "no_match": "Sem resultados.",
+    "remove": "Remover acesso",
+    "group": "Grupo",
+    "share_added": "Acesso concedido",
+    "share_updated": "Acesso atualizado",
+    "share_removed": "Acesso removido",
+    "share_failed": "Falha ao atualizar o compartilhamento",
+    "preset": {
+      "freeBusy": "Apenas disponibilidade",
+      "read": "Somente leitura",
+      "readWrite": "Leitura e escrita",
+      "manager": "Gerente",
+      "custom": "Personalizado"
+    }
   }
-}
+}

locales/ru/common.json

@@ -1285,6 +1285,10 @@
         "label": "Фавиконы отправителей (Экспериментально)",
         "description": "Показывать иконки сайтов как аватары для корпоративных отправителей"
       },
+      "show_avatars_in_junk": {
+        "label": "Показывать аватары в папке «Спам»",
+        "description": "Показывать аватары и фавиконы отправителей в папке «Спам». По умолчанию отключено, чтобы фишинговые письма не выглядели правдоподобно."
+      },
       "keyboard_shortcuts": {
         "label": "Сочетания клавиш",
         "description": "Просмотреть доступные сочетания клавиш",
@@ -1586,6 +1590,43 @@
     "items_selected": "{count} писем выбрано",
     "edit_draft": "Редактировать черновик"
   },
+  "mailbox_context_menu": {
+    "mark_folder_read": "Mark folder as read",
+    "mark_folder_tree_read": "Mark folder & subfolders as read",
+    "mark_all_folders_read": "Mark all folders as read",
+    "new_subfolder": "New subfolder...",
+    "new_folder": "New folder...",
+    "rename": "Rename...",
+    "empty_folder": "Empty folder",
+    "empty_folder_generic": "Empty folder",
+    "delete_folder": "Delete folder",
+    "refresh": "Refresh",
+    "mark_all_confirm_title": "Mark all folders as read",
+    "mark_all_confirm_message": "Mark every unread message in your personal account as read?",
+    "delete_confirm_title": "Delete folder",
+    "delete_confirm_message": "Permanently delete the folder \"{name}\"? This action cannot be undone.",
+    "prompt_new_subfolder": "Enter a name for the new subfolder.",
+    "prompt_new_folder": "Enter a name for the new folder.",
+    "prompt_rename": "Enter a new name for this folder.",
+    "toast_marked_read": "Folder marked as read",
+    "toast_marked_read_count": "Marked {count, plural, one {1 message} other {# messages}} as read",
+    "toast_already_read": "No unread messages",
+    "toast_marked_all_read": "All folders marked as read",
+    "toast_emptied": "Folder emptied",
+    "toast_folder_created": "Folder created",
+    "toast_folder_renamed": "Folder renamed",
+    "toast_folder_deleted": "Folder deleted",
+    "toast_error_mark_read": "Failed to mark as read",
+    "toast_error_empty": "Failed to empty folder",
+    "toast_error_create": "Failed to create folder",
+    "toast_error_rename": "Failed to rename folder",
+    "toast_error_delete": "Failed to delete folder",
+    "toast_error_delete_has_children": "Folder has subfolders. Remove them first.",
+    "toast_error_delete_has_email": "Folder is not empty. Empty it first.",
+    "placeholder_folder_name": "Folder name",
+    "create": "Create",
+    "rename_confirm": "Rename"
+  },
   "shortcuts": {
     "title": "Сочетания клавиш",
     "tip": "Нажмите ? в любое время для отображения справки",
@@ -1774,7 +1815,13 @@
       "renamed": "Адресная книга переименована",
       "rename_failed": "Не удалось переименовать адресную книгу",
       "default": "По умолчанию",
-      "manage": "Управление адресными книгами"
+      "manage": "Управление адресными книгами",
+      "share": "Поделиться адресной книгой",
+      "new_contact_in_book": "Новый контакт в этой адресной книге",
+      "delete": "Удалить адресную книгу",
+      "confirm_delete": "Удалить «{name}»? Все контакты в этой адресной книге будут удалены.",
+      "deleted": "Адресная книга удалена",
+      "delete_failed": "Не удалось удалить адресную книгу"
     },
     "detail": {
       "emails": "Адреса электронной почты",
@@ -2299,7 +2346,9 @@
       "error_delete": "Не удалось удалить календарь",
       "caldav_url": "URL CalDAV",
       "copy_url": "Скопировать CalDAV URL",
-      "url_copied": "CalDAV URL скопирован в буфер обмена"
+      "url_copied": "CalDAV URL скопирован в буфер обмена",
+      "share": "Поделиться календарём",
+      "new_event_in_calendar": "Новое событие в этом календаре"
     },
     "subscription": {
       "title": "Подписка iCal",
@@ -2665,5 +2714,28 @@
   },
   "unified_mailbox": {
     "search_unavailable": "Поиск недоступен в объединённом представлении"
+  },
+  "sharing": {
+    "title": "Поделиться «{name}»",
+    "description": "Предоставьте доступ другим пользователям или группам на этом сервере. Изменения вступают в силу немедленно.",
+    "no_shares": "Пока никому не предоставлен доступ.",
+    "add_person": "Добавить пользователя или группу",
+    "search_placeholder": "Искать по имени или email…",
+    "loading_principals": "Загрузка пользователей…",
+    "no_principals": "Других пользователей или групп не найдено.",
+    "no_match": "Нет совпадений.",
+    "remove": "Отозвать доступ",
+    "group": "Группа",
+    "share_added": "Доступ предоставлен",
+    "share_updated": "Доступ обновлён",
+    "share_removed": "Доступ отозван",
+    "share_failed": "Не удалось обновить общий доступ",
+    "preset": {
+      "freeBusy": "Только занятость",
+      "read": "Только чтение",
+      "readWrite": "Чтение и запись",
+      "manager": "Управляющий",
+      "custom": "Пользовательский"
+    }
   }
 }

locales/uk/common.json

@@ -1285,6 +1285,10 @@
         "label": "Favicons відправника (експериментальний)",
         "description": "Показувати піктограми веб-сайтів як зображення профілю для бізнес-відправників"
       },
+      "show_avatars_in_junk": {
+        "label": "Показувати аватари в папці «Спам»",
+        "description": "Показувати зображення профілю та фавікони відправників у папці «Спам». Типово вимкнено, щоб фішингові листи не виглядали достовірно."
+      },
       "keyboard_shortcuts": {
         "label": "Комбінації клавіш",
         "description": "Переглянути доступні комбінації клавіш",
@@ -1586,6 +1590,43 @@
     "items_selected": "Вибрано електронних листів: {count}",
     "edit_draft": "Редагувати чернетку"
   },
+  "mailbox_context_menu": {
+    "mark_folder_read": "Mark folder as read",
+    "mark_folder_tree_read": "Mark folder & subfolders as read",
+    "mark_all_folders_read": "Mark all folders as read",
+    "new_subfolder": "New subfolder...",
+    "new_folder": "New folder...",
+    "rename": "Rename...",
+    "empty_folder": "Empty folder",
+    "empty_folder_generic": "Empty folder",
+    "delete_folder": "Delete folder",
+    "refresh": "Refresh",
+    "mark_all_confirm_title": "Mark all folders as read",
+    "mark_all_confirm_message": "Mark every unread message in your personal account as read?",
+    "delete_confirm_title": "Delete folder",
+    "delete_confirm_message": "Permanently delete the folder \"{name}\"? This action cannot be undone.",
+    "prompt_new_subfolder": "Enter a name for the new subfolder.",
+    "prompt_new_folder": "Enter a name for the new folder.",
+    "prompt_rename": "Enter a new name for this folder.",
+    "toast_marked_read": "Folder marked as read",
+    "toast_marked_read_count": "Marked {count, plural, one {1 message} other {# messages}} as read",
+    "toast_already_read": "No unread messages",
+    "toast_marked_all_read": "All folders marked as read",
+    "toast_emptied": "Folder emptied",
+    "toast_folder_created": "Folder created",
+    "toast_folder_renamed": "Folder renamed",
+    "toast_folder_deleted": "Folder deleted",
+    "toast_error_mark_read": "Failed to mark as read",
+    "toast_error_empty": "Failed to empty folder",
+    "toast_error_create": "Failed to create folder",
+    "toast_error_rename": "Failed to rename folder",
+    "toast_error_delete": "Failed to delete folder",
+    "toast_error_delete_has_children": "Folder has subfolders. Remove them first.",
+    "toast_error_delete_has_email": "Folder is not empty. Empty it first.",
+    "placeholder_folder_name": "Folder name",
+    "create": "Create",
+    "rename_confirm": "Rename"
+  },
   "shortcuts": {
     "title": "Комбінації клавіш",
     "tip": "Натисніть ? у будь-який час, щоб показати цю допомогу",
@@ -1774,7 +1815,13 @@
       "renamed": "Адресну книгу перейменовано",
       "rename_failed": "Не вдалося перейменувати адресну книгу",
       "default": "За замовчуванням",
-      "manage": "Керуйте адресними книгами"
+      "manage": "Керуйте адресними книгами",
+      "share": "Поділитися адресною книгою",
+      "new_contact_in_book": "Новий контакт у цій адресній книзі",
+      "delete": "Видалити адресну книгу",
+      "confirm_delete": "Видалити «{name}»? Усі контакти в цій адресній книзі будуть видалені.",
+      "deleted": "Адресну книгу видалено",
+      "delete_failed": "Не вдалося видалити адресну книгу"
     },
     "detail": {
       "emails": "Адреси електронної пошти",
@@ -2299,7 +2346,9 @@
       "error_delete": "Не вдалося видалити календар",
       "caldav_url": "URL-адреса CalDAV",
       "copy_url": "Скопіюйте URL-адресу CalDAV",
-      "url_copied": "URL-адресу CalDAV скопійовано в буфер обміну"
+      "url_copied": "URL-адресу CalDAV скопійовано в буфер обміну",
+      "share": "Поділитися календарем",
+      "new_event_in_calendar": "Нова подія в цьому календарі"
     },
     "subscription": {
       "title": "Підписка iCal",
@@ -2665,5 +2714,28 @@
   },
   "unified_mailbox": {
     "search_unavailable": "Пошук недоступний в об'єднаному перегляді"
+  },
+  "sharing": {
+    "title": "Поділитися «{name}»",
+    "description": "Надайте доступ іншим користувачам або групам на цьому сервері. Зміни набувають чинності негайно.",
+    "no_shares": "Поки що ні з ким не поділено.",
+    "add_person": "Додати людину або групу",
+    "search_placeholder": "Шукати за іменем або email…",
+    "loading_principals": "Завантаження користувачів…",
+    "no_principals": "Інших користувачів або груп не знайдено.",
+    "no_match": "Збігів немає.",
+    "remove": "Видалити доступ",
+    "group": "Група",
+    "share_added": "Доступ надано",
+    "share_updated": "Доступ оновлено",
+    "share_removed": "Доступ видалено",
+    "share_failed": "Не вдалося оновити спільний доступ",
+    "preset": {
+      "freeBusy": "Лише зайнятість",
+      "read": "Лише читання",
+      "readWrite": "Читання та запис",
+      "manager": "Керівник",
+      "custom": "Власне"
+    }
   }
 }

locales/zh/common.json

@@ -1285,6 +1285,10 @@
         "label": "发件人图标（实验性）",
         "description": "使用企业发件人的网站图标作为头像"
       },
+      "show_avatars_in_junk": {
+        "label": "在垃圾邮件文件夹中显示头像",
+        "description": "在垃圾邮件文件夹中显示发件人的头像和网站图标。默认关闭，避免钓鱼邮件因熟悉的图标看起来更可信。"
+      },
       "keyboard_shortcuts": {
         "label": "键盘快捷键",
         "description": "查看可用快捷键",
@@ -1586,6 +1590,43 @@
     "items_selected": "已选择 {count} 封邮件",
     "edit_draft": "编辑草稿"
   },
+  "mailbox_context_menu": {
+    "mark_folder_read": "Mark folder as read",
+    "mark_folder_tree_read": "Mark folder & subfolders as read",
+    "mark_all_folders_read": "Mark all folders as read",
+    "new_subfolder": "New subfolder...",
+    "new_folder": "New folder...",
+    "rename": "Rename...",
+    "empty_folder": "Empty folder",
+    "empty_folder_generic": "Empty folder",
+    "delete_folder": "Delete folder",
+    "refresh": "Refresh",
+    "mark_all_confirm_title": "Mark all folders as read",
+    "mark_all_confirm_message": "Mark every unread message in your personal account as read?",
+    "delete_confirm_title": "Delete folder",
+    "delete_confirm_message": "Permanently delete the folder \"{name}\"? This action cannot be undone.",
+    "prompt_new_subfolder": "Enter a name for the new subfolder.",
+    "prompt_new_folder": "Enter a name for the new folder.",
+    "prompt_rename": "Enter a new name for this folder.",
+    "toast_marked_read": "Folder marked as read",
+    "toast_marked_read_count": "Marked {count, plural, one {1 message} other {# messages}} as read",
+    "toast_already_read": "No unread messages",
+    "toast_marked_all_read": "All folders marked as read",
+    "toast_emptied": "Folder emptied",
+    "toast_folder_created": "Folder created",
+    "toast_folder_renamed": "Folder renamed",
+    "toast_folder_deleted": "Folder deleted",
+    "toast_error_mark_read": "Failed to mark as read",
+    "toast_error_empty": "Failed to empty folder",
+    "toast_error_create": "Failed to create folder",
+    "toast_error_rename": "Failed to rename folder",
+    "toast_error_delete": "Failed to delete folder",
+    "toast_error_delete_has_children": "Folder has subfolders. Remove them first.",
+    "toast_error_delete_has_email": "Folder is not empty. Empty it first.",
+    "placeholder_folder_name": "Folder name",
+    "create": "Create",
+    "rename_confirm": "Rename"
+  },
   "shortcuts": {
     "title": "键盘快捷键",
     "tip": "按？随时显示此帮助",
@@ -1774,7 +1815,13 @@
       "renamed": "地址簿已重命名",
       "rename_failed": "重命名地址簿失败",
       "default": "默认",
-      "manage": "管理地址簿"
+      "manage": "管理地址簿",
+      "share": "共享通讯录",
+      "new_contact_in_book": "在此通讯录中新建联系人",
+      "delete": "删除通讯录",
+      "confirm_delete": "删除「{name}」？此通讯录中的所有联系人将被移除。",
+      "deleted": "通讯录已删除",
+      "delete_failed": "删除通讯录失败"
     },
     "detail": {
       "emails": "邮箱地址",
@@ -2299,7 +2346,9 @@
       "error_delete": "删除日历失败",
       "caldav_url": "CalDAV URL",
       "copy_url": "复制 CalDAV URL",
-      "url_copied": "CalDAV URL 已复制到剪贴板"
+      "url_copied": "CalDAV URL 已复制到剪贴板",
+      "share": "共享日历",
+      "new_event_in_calendar": "在此日历中新建事件"
     },
     "subscription": {
       "title": "iCal 订阅",
@@ -2665,5 +2714,28 @@
   },
   "unified_mailbox": {
     "search_unavailable": "统一视图中无法使用搜索"
+  },
+  "sharing": {
+    "title": "共享「{name}」",
+    "description": "向此服务器上的其他用户或群组授予访问权限。更改会立即生效。",
+    "no_shares": "尚未共享。",
+    "add_person": "添加用户或群组",
+    "search_placeholder": "按姓名或邮箱搜索…",
+    "loading_principals": "正在加载用户…",
+    "no_principals": "未找到其他用户或群组。",
+    "no_match": "无匹配项。",
+    "remove": "取消访问",
+    "group": "群组",
+    "share_added": "已授予访问权限",
+    "share_updated": "已更新访问权限",
+    "share_removed": "已取消访问权限",
+    "share_failed": "更新共享失败",
+    "preset": {
+      "freeBusy": "仅显示忙/闲",
+      "read": "只读",
+      "readWrite": "读写",
+      "manager": "管理员",
+      "custom": "自定义"
+    }
   }
 }

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "bulwark-webmail",
-  "version": "1.5.0",
+  "version": "1.5.2",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "bulwark-webmail",
-      "version": "1.5.0",
+      "version": "1.5.2",
       "license": "AGPL-3.0-only",
       "dependencies": {
         "@tanstack/react-virtual": "^3.13.24",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "bulwark-webmail",
-  "version": "1.5.0",
+  "version": "1.5.2",
   "description": "Bulwark Webmail - a modern webmail client built for Stalwart Mail Server",
   "author": "Bulwark Webmail <bulwark@rbm.systems>",
   "license": "AGPL-3.0-only",

proxy.ts

@@ -1,10 +1,21 @@
 import { type NextRequest, NextResponse } from "next/server";
 import createIntlMiddleware from "next-intl/middleware";
 import { routing } from "./i18n/routing";
+import { getEnabledPluginFrameOrigins } from "./lib/admin/csp-frame-origins";
 
 const intlMiddleware = createIntlMiddleware(routing);
 
-export function proxy(request: NextRequest) {
+// Next 16's Proxy always runs on Node.js runtime and route-segment config
+// (e.g. `export const config = { matcher }`) is no longer allowed in the
+// proxy file. We replicate the previous matcher inline by short-circuiting
+// requests for API routes, Next internals and static assets.
+const PROXY_SKIP_PATTERN = /^\/(?:api|_next)(?:\/|$)|\.[^/]+$/;
+
+export async function proxy(request: NextRequest) {
+  if (PROXY_SKIP_PATTERN.test(request.nextUrl.pathname)) {
+    return NextResponse.next();
+  }
+
   const nonce = crypto.randomUUID();
   const isDev = process.env.NODE_ENV === "development";
 
@@ -16,6 +27,14 @@ export function proxy(request: NextRequest) {
 
   const frameAncestors = process.env.ALLOWED_FRAME_ANCESTORS?.trim() || "'none'";
 
+  // Plugins may declare iframe origins they need (e.g. for embedded video).
+  // Each origin is validated at install time and re-validated here.
+  const pluginFrameOrigins = await getEnabledPluginFrameOrigins();
+  const frameSrc =
+    pluginFrameOrigins.length > 0
+      ? `frame-src 'self' blob: ${pluginFrameOrigins.join(" ")}`
+      : `frame-src 'self' blob:`;
+
   const csp = [
     `default-src 'self'`,
     `script-src ${scriptSrc}`,
@@ -23,7 +42,7 @@ export function proxy(request: NextRequest) {
     `img-src 'self' data: blob: https:`,
     `font-src 'self'`,
     `connect-src ${connectSrc}`,
-    `frame-src 'self' blob:`,
+    frameSrc,
     `object-src 'none'`,
     `base-uri 'self'`,
     `form-action 'self'`,
@@ -78,7 +97,3 @@ export function proxy(request: NextRequest) {
 
   return response;
 }
-
-export const config = {
-  matcher: ["/((?!api|_next|.*\\..*).*)"],
-};

stores/calendar-store.ts

@@ -1,7 +1,7 @@
 import { create } from 'zustand';
 import { persist } from 'zustand/middleware';
 import type { IJMAPClient } from '@/lib/jmap/client-interface';
-import type { Calendar, CalendarEvent, CalendarParticipant } from '@/lib/jmap/types';
+import type { Calendar, CalendarEvent, CalendarParticipant, CalendarRights } from '@/lib/jmap/types';
 import { debug } from '@/lib/debug';
 import { normalizeAllDayDuration } from '@/lib/calendar-utils';
 import { parseDuration } from '@/components/calendar/event-card';
@@ -125,6 +125,7 @@ interface CalendarStore {
   rsvpEvent: (client: IJMAPClient, eventId: string, participantId: string, status: string, replyTo?: Record<string, string> | null) => Promise<void>;
   importEvents: (client: IJMAPClient, events: Partial<CalendarEvent>[], calendarId: string) => Promise<number>;
   updateCalendar: (client: IJMAPClient, calendarId: string, updates: Partial<Calendar>) => Promise<void>;
+  shareCalendar: (client: IJMAPClient, calendarId: string, principalId: string, rights: CalendarRights | null) => Promise<void>;
   createCalendar: (client: IJMAPClient, calendar: Partial<Calendar>) => Promise<Calendar | null>;
   removeCalendar: (client: IJMAPClient, calendarId: string) => Promise<void>;
   clearCalendarEvents: (client: IJMAPClient, calendarId: string) => Promise<number>;
@@ -653,6 +654,29 @@ export const useCalendarStore = create<CalendarStore>()(
         }
       },
 
+      shareCalendar: async (client, calendarId, principalId, rights) => {
+        set({ error: null });
+        try {
+          const cal = get().calendars.find(c => c.id === calendarId);
+          const realId = cal?.originalId || calendarId;
+          const targetAccountId = cal?.accountId;
+          await client.setCalendarShare(realId, principalId, rights, targetAccountId);
+          set((state) => ({
+            calendars: state.calendars.map(c => {
+              if (c.id !== calendarId) return c;
+              const next = { ...(c.shareWith ?? {}) };
+              if (rights === null) delete next[principalId];
+              else next[principalId] = rights;
+              return { ...c, shareWith: next };
+            }),
+          }));
+        } catch (error) {
+          debug.error('Failed to share calendar:', error);
+          set({ error: 'Failed to share calendar' });
+          throw error;
+        }
+      },
+
       createCalendar: async (client, calendar) => {
         set({ error: null });
         try {

stores/contact-store.ts

@@ -1,6 +1,6 @@
 import { create } from 'zustand';
 import { persist } from 'zustand/middleware';
-import type { ContactCard, AddressBook, ContactName } from '@/lib/jmap/types';
+import type { ContactCard, AddressBook, AddressBookRights, ContactName } from '@/lib/jmap/types';
 import type { IJMAPClient } from '@/lib/jmap/client-interface';
 import { generateUUID } from '@/lib/utils';
 import { debug } from '@/lib/debug';
@@ -101,6 +101,8 @@ interface ContactStore {
   bulkAddToGroup: (client: IJMAPClient | null, groupId: string, contactIds: string[]) => Promise<void>;
   moveContactToAddressBook: (client: IJMAPClient, contactIds: string[], addressBook: AddressBook) => Promise<void>;
   renameAddressBook: (client: IJMAPClient, addressBook: AddressBook, newName: string) => Promise<void>;
+  removeAddressBook: (client: IJMAPClient, addressBook: AddressBook) => Promise<void>;
+  shareAddressBook: (client: IJMAPClient, addressBook: AddressBook, principalId: string, rights: AddressBookRights | null) => Promise<void>;
   renameKeyword: (client: IJMAPClient | null, oldKeyword: string, newKeyword: string) => Promise<void>;
 
   importContacts: (client: IJMAPClient | null, contacts: ContactCard[]) => Promise<number>;
@@ -655,6 +657,45 @@ export const useContactStore = create<ContactStore>()(
         }
       },
 
+      removeAddressBook: async (client, addressBook) => {
+        set({ error: null });
+        try {
+          const originalId = addressBook.originalId || addressBook.id;
+          const accountId = addressBook.isShared ? addressBook.accountId : undefined;
+          await client.deleteAddressBook(originalId, accountId);
+          set((state) => ({
+            addressBooks: state.addressBooks.filter(b => b.id !== addressBook.id),
+            contacts: state.contacts.filter(c => !c.addressBookIds?.[addressBook.id]),
+          }));
+        } catch (error) {
+          const msg = error instanceof Error ? error.message : 'Failed to delete address book';
+          set({ error: msg });
+          throw error;
+        }
+      },
+
+      shareAddressBook: async (client, addressBook, principalId, rights) => {
+        set({ error: null });
+        try {
+          const originalId = addressBook.originalId || addressBook.id;
+          const accountId = addressBook.isShared ? addressBook.accountId : undefined;
+          await client.setAddressBookShare(originalId, principalId, rights, accountId);
+          set((state) => ({
+            addressBooks: state.addressBooks.map(b => {
+              if (b.id !== addressBook.id) return b;
+              const next = { ...(b.shareWith ?? {}) };
+              if (rights === null) delete next[principalId];
+              else next[principalId] = rights;
+              return { ...b, shareWith: next };
+            }),
+          }));
+        } catch (error) {
+          const msg = error instanceof Error ? error.message : 'Failed to share address book';
+          set({ error: msg });
+          throw error;
+        }
+      },
+
       renameKeyword: async (client, oldKeyword, newKeyword) => {
         set({ error: null });
         const oldKw = oldKeyword.trim();

stores/email-store.ts

@@ -118,6 +118,7 @@ interface EmailStore {
   deleteMailbox: (client: IJMAPClient, mailboxId: string) => Promise<void>;
   setMailboxRole: (client: IJMAPClient, mailboxId: string, role: string | null) => Promise<void>;
   emptyMailbox: (client: IJMAPClient, mailboxId: string) => Promise<void>;
+  markMailboxAsRead: (client: IJMAPClient, mailboxId: string) => Promise<number>;
 
   // Unified mailbox operations
   fetchUnifiedEmails: (accounts: UnifiedAccountClient[], role: UnifiedMailboxRole) => Promise<void>;
@@ -289,7 +290,12 @@ export const useEmailStore = create<EmailStore>((set, get) => ({
 
   // JMAP operations
   fetchMailboxes: async (client) => {
-    set({ isLoading: true, error: null });
+    // Only toggle the email list's isLoading on the initial load. Background
+    // refreshes (after a move/archive that may have created new folders) must
+    // not flash the list's loading state, which hides the results-count bar
+    // and dims the list while folders re-fetch.
+    const isInitialLoad = get().mailboxes.length === 0;
+    if (isInitialLoad) set({ isLoading: true, error: null });
     try {
       const mailboxes = await client.getAllMailboxes();
 
@@ -297,21 +303,22 @@ export const useEmailStore = create<EmailStore>((set, get) => ({
       // doesn't exist in the fetched list (e.g. after an account switch)
       const currentSelectedMailbox = get().selectedMailbox;
       const selectionValid = currentSelectedMailbox && mailboxes.some(m => m.id === currentSelectedMailbox);
+      const loadingPatch = isInitialLoad ? { isLoading: false } : {};
       if (!selectionValid) {
         // Find inbox from PRIMARY account (not shared accounts)
         const inboxMailbox = mailboxes.find(m => m.role === 'inbox' && !m.isShared);
         if (inboxMailbox) {
-          set({ mailboxes, selectedMailbox: inboxMailbox.id, isLoading: false });
+          set({ mailboxes, selectedMailbox: inboxMailbox.id, ...loadingPatch });
         } else {
-          set({ mailboxes, selectedMailbox: '', isLoading: false });
+          set({ mailboxes, selectedMailbox: '', ...loadingPatch });
         }
       } else {
-        set({ mailboxes, isLoading: false });
+        set({ mailboxes, ...loadingPatch });
       }
     } catch (error) {
       set({
         error: error instanceof Error ? error.message : "Failed to fetch mailboxes",
-        isLoading: false
+        ...(isInitialLoad ? { isLoading: false } : {})
       });
     }
   },
@@ -1254,9 +1261,9 @@ export const useEmailStore = create<EmailStore>((set, get) => ({
         isLoading: false
       });
 
-      // Refresh emails to get updated list
+      // Refresh emails to get updated list (honors active search/filters)
       if (!get().isUnifiedView) {
-        await get().fetchEmails(client, get().selectedMailbox);
+        await get().refreshCurrentMailbox(client);
       }
     } catch (error) {
       set({
@@ -1267,7 +1274,7 @@ export const useEmailStore = create<EmailStore>((set, get) => ({
   },
 
   batchArchive: async (client) => {
-    const { selectedEmailIds, emails, mailboxes, fetchMailboxes, fetchEmails, selectedMailbox } = get();
+    const { selectedEmailIds, emails, mailboxes, fetchMailboxes } = get();
     if (selectedEmailIds.size === 0) return;
 
     const archiveMailbox = mailboxes.find(m => m.role === 'archive' || m.name.toLowerCase() === 'archive');
@@ -1293,7 +1300,8 @@ export const useEmailStore = create<EmailStore>((set, get) => ({
       set({ emails: remaining, selectedEmailIds: new Set(), isLoading: false });
 
       await fetchMailboxes(client);
-      await fetchEmails(client, selectedMailbox);
+      // Refresh the current mailbox view (honors active search/filters)
+      await get().refreshCurrentMailbox(client);
     } catch (error) {
       set({
         error: error instanceof Error ? error.message : 'Failed to archive emails',
@@ -1743,6 +1751,39 @@ export const useEmailStore = create<EmailStore>((set, get) => ({
     }
   },
 
+  markMailboxAsRead: async (client, mailboxId) => {
+    try {
+      const mailbox = get().mailboxes.find(mb => mb.id === mailboxId);
+      const accountId = mailbox?.isShared ? mailbox.accountId : undefined;
+      const jmapMailboxId = mailbox?.originalId || mailboxId;
+
+      const count = await client.markMailboxAsRead(jmapMailboxId, accountId);
+
+      // Update local state: mark all emails currently visible in this mailbox as read,
+      // and zero-out the mailbox unread counter.
+      set((state) => ({
+        emails: state.emails.map(e =>
+          e.mailboxIds && e.mailboxIds[mailboxId]
+            ? { ...e, keywords: { ...e.keywords, $seen: true } }
+            : e
+        ),
+        selectedEmail: state.selectedEmail && state.selectedEmail.mailboxIds?.[mailboxId]
+          ? { ...state.selectedEmail, keywords: { ...state.selectedEmail.keywords, $seen: true } }
+          : state.selectedEmail,
+        mailboxes: state.mailboxes.map(mb =>
+          mb.id === mailboxId
+            ? { ...mb, unreadEmails: 0, unreadThreads: 0 }
+            : mb
+        ),
+      }));
+
+      return count;
+    } catch (error) {
+      set({ error: error instanceof Error ? error.message : 'Failed to mark folder as read' });
+      throw error;
+    }
+  },
+
   // Unified mailbox operations
   fetchUnifiedEmails: async (accounts, role) => {
     set({

stores/plugin-store.ts

@@ -20,7 +20,7 @@ import { apiFetch } from '@/lib/browser-navigation';
 // ─── Slot State ──────────────────────────────────────────────
 
 const SLOT_NAMES: SlotName[] = [
-  'toolbar-actions', 'email-banner', 'email-footer', 'composer-toolbar',
+  'toolbar-actions', 'email-banner', 'email-footer', 'composer-toolbar', 'composer-sidebar', 'composer-sidebar-right',
   'sidebar-widget', 'email-detail-sidebar', 'settings-section', 'context-menu-email', 'navigation-rail-bottom',
   'calendar-event-actions', 'admin-plugin-page',
 ];

stores/settings-store.ts

@@ -187,6 +187,7 @@ interface SettingsState {
 
   // Experimental
   senderFavicons: boolean;
+  showAvatarsInJunk: boolean; // Show profile images/favicons in the junk folder
 
   // Sidebar
   colorfulSidebarIcons: boolean; // Tint folder icons by role (inbox blue, junk red, etc.)
@@ -334,6 +335,7 @@ const DEFAULT_SETTINGS = {
 
   // Experimental
   senderFavicons: true,
+  showAvatarsInJunk: false,
 
   // Sidebar
   colorfulSidebarIcons: true,
@@ -475,6 +477,7 @@ export const useSettingsStore = create<SettingsState>()(
           showRailAccountList: state.showRailAccountList,
           enableUnifiedMailbox: state.enableUnifiedMailbox,
           senderFavicons: state.senderFavicons,
+          showAvatarsInJunk: state.showAvatarsInJunk,
           colorfulSidebarIcons: state.colorfulSidebarIcons,
           folderIcons: state.folderIcons,
           emailKeywords: state.emailKeywords,