diff --git a/app/(main)/[locale]/page.tsx b/app/(main)/[locale]/page.tsx
index d13164e5..542a9bd6 100644
--- a/app/(main)/[locale]/page.tsx
+++ b/app/(main)/[locale]/page.tsx
@@ -3194,7 +3194,17 @@ export default function Home() {
                     onReply={handleReply}
                     onReplyAll={handleReplyAll}
                     onForward={handleForward}
-                    onDelete={() => handleDelete()}
+                    onDelete={() => {
+                      // Deleting the open message returns to the list (Gmail-style),
+                      // not the next email — unless the user turned the setting off.
+                      // Deselect first so the store's remove-and-advance sees no
+                      // selection and doesn't auto-open the next message.
+                      const target = selectedEmail;
+                      if (useSettingsStore.getState().returnToListAfterAction) {
+                        handleMobileBack();
+                      }
+                      handleDelete(target);
+                    }}
                     onArchive={() => handleArchive()}
                     onToggleStar={handleToggleStar}
                     onSetColorTag={handleSetColorTag}
@@ -3203,6 +3213,12 @@ export default function Home() {
                     onMarkAsRead={async (emailId, read) => {
                       if (client) {
                         await markAsRead(client, emailId, read);
+                        // Marking the open message unread returns to the list
+                        // (Gmail-style, gated on returnToListAfterAction). Staying
+                        // in the reading pane would just re-mark it read on view.
+                        if (!read && useSettingsStore.getState().returnToListAfterAction) {
+                          handleMobileBack();
+                        }
                       }
                     }}
                     onDownloadAttachment={handleDownloadAttachment}
diff --git a/components/settings/layout-settings.tsx b/components/settings/layout-settings.tsx
index c86eec9e..d997b94c 100644
--- a/components/settings/layout-settings.tsx
+++ b/components/settings/layout-settings.tsx
@@ -121,6 +121,7 @@ export function LayoutSettings() {
   const { toolbarPosition, showToolbarLabels, hideAccountSwitcher, showRailAccountList, enableUnifiedMailbox, includeGroupInUnified, enableAllMailView, allMailFolderIds, enableCrossUnreadView, enableCrossStarredView, enableCrossAllView, colorfulSidebarIcons, mailLayout, proInterface, updateSetting } = useSettingsStore();
   const { isSettingLocked, isSettingHidden, isFeatureEnabled } = usePolicyStore();
   const accounts = useAccountStore(s => s.accounts);
+  const activeAccountId = useAccountStore(s => s.activeAccountId);
   const mailboxes = useEmailStore(s => s.mailboxes);
   const hasGroupInboxes = useMemo(() => mailboxes.some(m => m.isShared), [mailboxes]);
   const allMailViewAllowed = isFeatureEnabled('allMailViewEnabled');
@@ -131,20 +132,32 @@ export function LayoutSettings() {
     { setting: 'enableCrossAllView', value: enableCrossAllView, allowed: isFeatureEnabled('crossAllViewEnabled'), labelKey: 'cross_all.label', descKey: 'cross_all.description' },
   ] as const;
 
-  // Own (non-shared) folders and the current All Mail selection. `null` =
-  // never configured, which defaults to all non-special (no-role) folders.
+  // Own (non-shared) folders and the active account's All Mail selection. The
+  // selection is per account: a missing entry = never configured, which
+  // defaults to all no-role folders; an explicit [] = no folders.
   const ownMailboxes = useMemo(() => mailboxes.filter(m => !m.isShared), [mailboxes]);
+  const currentAllMailEntry = activeAccountId ? allMailFolderIds[activeAccountId] : undefined;
   const allMailSelected = new Set(
-    allMailFolderIds === null
+    currentAllMailEntry === undefined
       ? ownMailboxes.filter(m => !m.role).map(m => m.id)
-      : allMailFolderIds
+      : currentAllMailEntry
   );
   const toggleAllMailFolder = (id: string) => {
+    if (!activeAccountId) return;
     const next = new Set(allMailSelected);
     if (next.has(id)) next.delete(id);
     else next.add(id);
-    updateSetting('allMailFolderIds', ownMailboxes.filter(m => next.has(m.id)).map(m => m.id));
+    updateSetting('allMailFolderIds', {
+      ...allMailFolderIds,
+      [activeAccountId]: ownMailboxes.filter(m => next.has(m.id)).map(m => m.id),
+    });
   };
+  // Name the account the selection applies to, but only when more than one is
+  // logged in (otherwise it's unambiguous).
+  const activeAccount = accounts.find(a => a.id === activeAccountId);
+  const allMailAccountHint = accounts.length > 1 && activeAccount
+    ? t('all_mail.account_hint', { account: activeAccount.displayName || activeAccount.email })
+    : null;
 
   return (
     <SettingsSection title={t('title')} description={t('description')}>
@@ -270,6 +283,9 @@ export function LayoutSettings() {
           <div>
             <div className="text-sm font-medium text-foreground">{t('all_mail.folders_label')}</div>
             <div className="text-xs text-muted-foreground">{t('all_mail.folders_description')}</div>
+            {allMailAccountHint && (
+              <div className="text-xs italic text-muted-foreground mt-0.5">{allMailAccountHint}</div>
+            )}
           </div>
           {ownMailboxes.length === 0 ? (
             <p className="text-xs text-muted-foreground">{t('all_mail.no_folders')}</p>
diff --git a/components/settings/reading-settings.tsx b/components/settings/reading-settings.tsx
index f74aa045..1a54f8f1 100644
--- a/components/settings/reading-settings.tsx
+++ b/components/settings/reading-settings.tsx
@@ -22,6 +22,7 @@ export function ReadingSettings() {
     markAsReadDelay,
     deleteAction,
     permanentlyDeleteJunk,
+    returnToListAfterAction,
     showPreview,
     mailLayout,
     disableThreading,
@@ -176,6 +177,13 @@ export function ReadingSettings() {
         />
       </SettingItem>
 
+      <SettingItem label={t('return_to_list_after_action.label')} description={t('return_to_list_after_action.description')}>
+        <ToggleSwitch
+          checked={returnToListAfterAction}
+          onChange={(checked) => updateSetting('returnToListAfterAction', checked)}
+        />
+      </SettingItem>
+
       {!isSettingHidden('showPreview') && (
       <SettingItem
         label={t('show_preview.label')}
diff --git a/lib/__tests__/subject-prefix.test.ts b/lib/__tests__/subject-prefix.test.ts
index 3fa4b4fe..bb514754 100644
--- a/lib/__tests__/subject-prefix.test.ts
+++ b/lib/__tests__/subject-prefix.test.ts
@@ -10,10 +10,9 @@ describe('stripSubjectPrefixes', () => {
     expect(stripSubjectPrefixes('Re: AW: WG: foo')).toBe('foo');
   });
 
-  it('strips the Outlook [N] counter and Eudora *N counter', () => {
+  it('strips the Outlook [N] and Eudora *N counters', () => {
     expect(stripSubjectPrefixes('Re[2]: foo')).toBe('foo');
     expect(stripSubjectPrefixes('Re*3: foo')).toBe('foo');
-    expect(stripSubjectPrefixes('Re*: foo')).toBe('foo');
   });
 
   it('is case-insensitive and idempotent', () => {
@@ -21,47 +20,37 @@ describe('stripSubjectPrefixes', () => {
     expect(stripSubjectPrefixes(stripSubjectPrefixes('RE: Re: foo'))).toBe('foo');
   });
 
-  it('strips a Cyrillic reply token', () => {
+  it('strips a Cyrillic token and an ASCII-colon Chinese token', () => {
     expect(stripSubjectPrefixes('Ответ: foo')).toBe('foo');
-  });
-
-  it('strips a Chinese token followed by an ASCII colon', () => {
     expect(stripSubjectPrefixes('回复: foo')).toBe('foo');
   });
 
-  it('CHARACTERISATION: does NOT strip a token followed by a full-width colon', () => {
-    // The colon in the regex is ASCII ":"; a full-width "：" (U+FF1A), as some
-    // CJK mail clients emit, is left untouched. Likely a bug — see follow-ups.
-    expect(stripSubjectPrefixes('回复：foo')).toBe('回复：foo');
+  it('strips a token followed by a full-width colon (CJK clients)', () => {
+    expect(stripSubjectPrefixes('回复：foo')).toBe('foo');
+    expect(stripSubjectPrefixes('回覆：foo')).toBe('foo');
+    expect(stripSubjectPrefixes('Re：foo')).toBe('foo');
   });
 
-  it('does NOT strip a bare single-letter "R:" (would eat real subjects)', () => {
+  it('still does not strip a bare single-letter "R:"', () => {
     expect(stripSubjectPrefixes('R: budget 2024')).toBe('R: budget 2024');
   });
 
-  it('returns "" for empty / null / undefined', () => {
+  it('returns "" for empty / null / undefined and leaves clean subjects alone', () => {
     expect(stripSubjectPrefixes('')).toBe('');
     expect(stripSubjectPrefixes(null)).toBe('');
     expect(stripSubjectPrefixes(undefined)).toBe('');
-  });
-
-  it('leaves a prefix-free subject untouched', () => {
     expect(stripSubjectPrefixes('foo')).toBe('foo');
   });
 });
 
 describe('buildReplySubject / buildForwardSubject', () => {
-  it('replaces an existing prefix chain with the given prefix', () => {
-    expect(buildReplySubject('AW: WG: foo', 'Re:')).toBe('Re: foo');
+  it('replaces a prefix chain (incl. a full-width colon) with the given prefix', () => {
+    expect(buildReplySubject('回复：foo', 'Re:')).toBe('Re: foo');
     expect(buildForwardSubject('Re: foo', 'Fwd:')).toBe('Fwd: foo');
   });
 
-  it('prepends the prefix to a prefix-free subject', () => {
+  it('prepends to a clean subject and returns the bare prefix for empty input', () => {
     expect(buildReplySubject('foo', 'AW:')).toBe('AW: foo');
-  });
-
-  it('returns just the bare prefix for an empty subject', () => {
     expect(buildReplySubject('', 'AW:')).toBe('AW:');
-    expect(buildForwardSubject(null, 'Fwd:')).toBe('Fwd:');
   });
 });
diff --git a/lib/subject-prefix.ts b/lib/subject-prefix.ts
index 5ca0d5aa..766155a7 100644
--- a/lib/subject-prefix.ts
+++ b/lib/subject-prefix.ts
@@ -64,8 +64,10 @@ function buildPrefixRegex(tokens: string[]): RegExp {
   // Sort by length DESC so longer tokens (e.g. "Пересл") win over their
   // shorter prefixes (e.g. "Пер") during alternation matching.
   escaped.sort((a, b) => b.length - a.length);
+  // Accept both the ASCII colon and the full-width colon "：" (U+FF1A) that CJK
+  // mail clients emit after a localized prefix (e.g. "回复：foo").
   return new RegExp(
-    `^\\s*(?:${escaped.join("|")})(?:\\[\\d+\\]|\\*\\d*)?\\s*:\\s*`,
+    `^\\s*(?:${escaped.join("|")})(?:\\[\\d+\\]|\\*\\d*)?\\s*[:\\uFF1A]\\s*`,
     "i",
   );
 }
diff --git a/locales/cs/common.json b/locales/cs/common.json
index 9244eb69..0c96d96f 100644
--- a/locales/cs/common.json
+++ b/locales/cs/common.json
@@ -922,6 +922,7 @@
         "description": "Show an \"All Mail\" entry above your folders that merges messages from across this account's folders into one list.",
         "folders_label": "Folders in All Mail",
         "folders_description": "Choose which folders are merged into the All Mail view.",
+        "account_hint": "Applies to {account}.",
         "no_folders": "No folders available."
       },
       "colorful_sidebar_icons": {
@@ -1242,6 +1243,10 @@
         "off": "Vypnuto",
         "seconds": "{seconds} sekund",
         "unsupported": "Aktuální účet neoznamuje podporu odloženého odeslání. Nastavení zůstane uloženo pro jiné účty."
+      },
+      "return_to_list_after_action": {
+        "label": "Return to list after delete or mark unread",
+        "description": "After deleting or marking the open message unread, go back to the message list instead of opening the next message."
       }
     },
     "composer": {
diff --git a/locales/da/common.json b/locales/da/common.json
index 143066f4..9e696fee 100644
--- a/locales/da/common.json
+++ b/locales/da/common.json
@@ -925,6 +925,7 @@
         "description": "Show an \"All Mail\" entry above your folders that merges messages from across this account's folders into one list.",
         "folders_label": "Folders in All Mail",
         "folders_description": "Choose which folders are merged into the All Mail view.",
+        "account_hint": "Applies to {account}.",
         "no_folders": "No folders available."
       },
       "colorful_sidebar_icons": {
@@ -1245,6 +1246,10 @@
         "off": "Fra",
         "seconds": "{seconds} sekunder",
         "unsupported": "Den aktuelle konto annoncerer ikke understøttelse af forsinket afsendelse. Indstillingen gemmes stadig for andre konti."
+      },
+      "return_to_list_after_action": {
+        "label": "Return to list after delete or mark unread",
+        "description": "After deleting or marking the open message unread, go back to the message list instead of opening the next message."
       }
     },
     "composer": {
diff --git a/locales/de/common.json b/locales/de/common.json
index b53b64d4..fddc8a3c 100644
--- a/locales/de/common.json
+++ b/locales/de/common.json
@@ -922,6 +922,7 @@
         "description": "Show an \"All Mail\" entry above your folders that merges messages from across this account's folders into one list.",
         "folders_label": "Folders in All Mail",
         "folders_description": "Choose which folders are merged into the All Mail view.",
+        "account_hint": "Gilt für {account}.",
         "no_folders": "No folders available."
       },
       "colorful_sidebar_icons": {
@@ -1242,6 +1243,10 @@
         "off": "Aus",
         "seconds": "{seconds} Sekunden",
         "unsupported": "Das aktuelle Konto meldet keine Unterstützung für verzögertes Senden. Die Einstellung bleibt für andere Konten gespeichert."
+      },
+      "return_to_list_after_action": {
+        "label": "Return to list after delete or mark unread",
+        "description": "After deleting or marking the open message unread, go back to the message list instead of opening the next message."
       }
     },
     "composer": {
diff --git a/locales/en/common.json b/locales/en/common.json
index e77f6a19..3e7db119 100644
--- a/locales/en/common.json
+++ b/locales/en/common.json
@@ -925,6 +925,7 @@
         "description": "Show an \"All Mail\" entry above your folders that merges messages from across this account's folders into one list.",
         "folders_label": "Folders in All Mail",
         "folders_description": "Choose which folders are merged into the All Mail view.",
+        "account_hint": "Applies to {account}.",
         "no_folders": "No folders available."
       },
       "colorful_sidebar_icons": {
@@ -1245,6 +1246,10 @@
         "off": "Off",
         "seconds": "{seconds} seconds",
         "unsupported": "The current account does not advertise delayed-send support. The setting is still saved for other accounts."
+      },
+      "return_to_list_after_action": {
+        "label": "Return to list after delete or mark unread",
+        "description": "After deleting or marking the open message unread, go back to the message list instead of opening the next message."
       }
     },
     "composer": {
diff --git a/locales/es/common.json b/locales/es/common.json
index ef462458..f75b4220 100644
--- a/locales/es/common.json
+++ b/locales/es/common.json
@@ -922,6 +922,7 @@
         "description": "Show an \"All Mail\" entry above your folders that merges messages from across this account's folders into one list.",
         "folders_label": "Folders in All Mail",
         "folders_description": "Choose which folders are merged into the All Mail view.",
+        "account_hint": "Applies to {account}.",
         "no_folders": "No folders available."
       },
       "colorful_sidebar_icons": {
@@ -1242,6 +1243,10 @@
         "off": "Desactivado",
         "seconds": "{seconds} segundos",
         "unsupported": "La cuenta actual no anuncia compatibilidad con envío demorado. La opción seguirá guardada para otras cuentas."
+      },
+      "return_to_list_after_action": {
+        "label": "Return to list after delete or mark unread",
+        "description": "After deleting or marking the open message unread, go back to the message list instead of opening the next message."
       }
     },
     "composer": {
diff --git a/locales/fr/common.json b/locales/fr/common.json
index ca0b6904..76a2312f 100644
--- a/locales/fr/common.json
+++ b/locales/fr/common.json
@@ -922,6 +922,7 @@
         "description": "Show an \"All Mail\" entry above your folders that merges messages from across this account's folders into one list.",
         "folders_label": "Folders in All Mail",
         "folders_description": "Choose which folders are merged into the All Mail view.",
+        "account_hint": "Applies to {account}.",
         "no_folders": "No folders available."
       },
       "colorful_sidebar_icons": {
@@ -1242,6 +1243,10 @@
         "off": "Désactivé",
         "seconds": "{seconds} secondes",
         "unsupported": "Le compte actuel n’annonce pas la prise en charge de l’envoi différé. Le réglage reste enregistré pour d’autres comptes."
+      },
+      "return_to_list_after_action": {
+        "label": "Return to list after delete or mark unread",
+        "description": "After deleting or marking the open message unread, go back to the message list instead of opening the next message."
       }
     },
     "composer": {
diff --git a/locales/hu/common.json b/locales/hu/common.json
index fa478aa6..754ee99e 100644
--- a/locales/hu/common.json
+++ b/locales/hu/common.json
@@ -925,6 +925,7 @@
         "description": "Show an \"All Mail\" entry above your folders that merges messages from across this account's folders into one list.",
         "folders_label": "Folders in All Mail",
         "folders_description": "Choose which folders are merged into the All Mail view.",
+        "account_hint": "Applies to {account}.",
         "no_folders": "No folders available."
       },
       "colorful_sidebar_icons": {
@@ -1245,6 +1246,10 @@
         "off": "Kikapcsolva",
         "seconds": "{seconds} másodperc",
         "unsupported": "A jelenlegi fiók nem támogatja a késleltetett küldést. A beállítás más fiókokhoz elmentésre kerül."
+      },
+      "return_to_list_after_action": {
+        "label": "Return to list after delete or mark unread",
+        "description": "After deleting or marking the open message unread, go back to the message list instead of opening the next message."
       }
     },
     "composer": {
diff --git a/locales/it/common.json b/locales/it/common.json
index e8239822..091ab27c 100644
--- a/locales/it/common.json
+++ b/locales/it/common.json
@@ -922,6 +922,7 @@
         "description": "Show an \"All Mail\" entry above your folders that merges messages from across this account's folders into one list.",
         "folders_label": "Folders in All Mail",
         "folders_description": "Choose which folders are merged into the All Mail view.",
+        "account_hint": "Applies to {account}.",
         "no_folders": "No folders available."
       },
       "colorful_sidebar_icons": {
@@ -1242,6 +1243,10 @@
         "off": "Disattivato",
         "seconds": "{seconds} secondi",
         "unsupported": "L’account corrente non dichiara il supporto all’invio ritardato. L’impostazione resta salvata per altri account."
+      },
+      "return_to_list_after_action": {
+        "label": "Return to list after delete or mark unread",
+        "description": "After deleting or marking the open message unread, go back to the message list instead of opening the next message."
       }
     },
     "composer": {
diff --git a/locales/ja/common.json b/locales/ja/common.json
index 78a74926..e504cbf5 100644
--- a/locales/ja/common.json
+++ b/locales/ja/common.json
@@ -922,6 +922,7 @@
         "description": "Show an \"All Mail\" entry above your folders that merges messages from across this account's folders into one list.",
         "folders_label": "Folders in All Mail",
         "folders_description": "Choose which folders are merged into the All Mail view.",
+        "account_hint": "Applies to {account}.",
         "no_folders": "No folders available."
       },
       "colorful_sidebar_icons": {
@@ -1242,6 +1243,10 @@
         "off": "オフ",
         "seconds": "{seconds} 秒",
         "unsupported": "現在のアカウントは遅延送信のサポートを通知していません。この設定は他のアカウント用に保存されます。"
+      },
+      "return_to_list_after_action": {
+        "label": "Return to list after delete or mark unread",
+        "description": "After deleting or marking the open message unread, go back to the message list instead of opening the next message."
       }
     },
     "composer": {
diff --git a/locales/ko/common.json b/locales/ko/common.json
index 302aba24..e18b4c2c 100644
--- a/locales/ko/common.json
+++ b/locales/ko/common.json
@@ -922,6 +922,7 @@
         "description": "Show an \"All Mail\" entry above your folders that merges messages from across this account's folders into one list.",
         "folders_label": "Folders in All Mail",
         "folders_description": "Choose which folders are merged into the All Mail view.",
+        "account_hint": "Applies to {account}.",
         "no_folders": "No folders available."
       },
       "colorful_sidebar_icons": {
@@ -1242,6 +1243,10 @@
         "off": "끔",
         "seconds": "{seconds}초",
         "unsupported": "현재 계정은 지연 보내기 지원을 알리지 않습니다. 설정은 다른 계정을 위해 계속 저장됩니다."
+      },
+      "return_to_list_after_action": {
+        "label": "Return to list after delete or mark unread",
+        "description": "After deleting or marking the open message unread, go back to the message list instead of opening the next message."
       }
     },
     "composer": {
diff --git a/locales/lv/common.json b/locales/lv/common.json
index a87ae65f..1d58b448 100644
--- a/locales/lv/common.json
+++ b/locales/lv/common.json
@@ -922,6 +922,7 @@
         "description": "Show an \"All Mail\" entry above your folders that merges messages from across this account's folders into one list.",
         "folders_label": "Folders in All Mail",
         "folders_description": "Choose which folders are merged into the All Mail view.",
+        "account_hint": "Applies to {account}.",
         "no_folders": "No folders available."
       },
       "colorful_sidebar_icons": {
@@ -1242,6 +1243,10 @@
         "off": "Izslēgts",
         "seconds": "{seconds} sekundes",
         "unsupported": "Pašreizējais konts neziņo par aizturētas sūtīšanas atbalstu. Iestatījums joprojām tiks saglabāts citiem kontiem."
+      },
+      "return_to_list_after_action": {
+        "label": "Return to list after delete or mark unread",
+        "description": "After deleting or marking the open message unread, go back to the message list instead of opening the next message."
       }
     },
     "composer": {
diff --git a/locales/nl/common.json b/locales/nl/common.json
index 399163a2..82ff3e60 100644
--- a/locales/nl/common.json
+++ b/locales/nl/common.json
@@ -922,6 +922,7 @@
         "description": "Show an \"All Mail\" entry above your folders that merges messages from across this account's folders into one list.",
         "folders_label": "Folders in All Mail",
         "folders_description": "Choose which folders are merged into the All Mail view.",
+        "account_hint": "Applies to {account}.",
         "no_folders": "No folders available."
       },
       "colorful_sidebar_icons": {
@@ -1242,6 +1243,10 @@
         "off": "Uit",
         "seconds": "{seconds} seconden",
         "unsupported": "Het huidige account meldt geen ondersteuning voor vertraagd verzenden. De instelling blijft opgeslagen voor andere accounts."
+      },
+      "return_to_list_after_action": {
+        "label": "Return to list after delete or mark unread",
+        "description": "After deleting or marking the open message unread, go back to the message list instead of opening the next message."
       }
     },
     "composer": {
diff --git a/locales/pl/common.json b/locales/pl/common.json
index 09154a32..e5597797 100644
--- a/locales/pl/common.json
+++ b/locales/pl/common.json
@@ -922,6 +922,7 @@
         "description": "Show an \"All Mail\" entry above your folders that merges messages from across this account's folders into one list.",
         "folders_label": "Folders in All Mail",
         "folders_description": "Choose which folders are merged into the All Mail view.",
+        "account_hint": "Applies to {account}.",
         "no_folders": "No folders available."
       },
       "colorful_sidebar_icons": {
@@ -1242,6 +1243,10 @@
         "off": "Wyłączone",
         "seconds": "{seconds} sekund",
         "unsupported": "Bieżące konto nie zgłasza obsługi opóźnionej wysyłki. Ustawienie pozostanie zapisane dla innych kont."
+      },
+      "return_to_list_after_action": {
+        "label": "Return to list after delete or mark unread",
+        "description": "After deleting or marking the open message unread, go back to the message list instead of opening the next message."
       }
     },
     "composer": {
diff --git a/locales/pt/common.json b/locales/pt/common.json
index da68af86..7844d950 100644
--- a/locales/pt/common.json
+++ b/locales/pt/common.json
@@ -922,6 +922,7 @@
         "description": "Show an \"All Mail\" entry above your folders that merges messages from across this account's folders into one list.",
         "folders_label": "Folders in All Mail",
         "folders_description": "Choose which folders are merged into the All Mail view.",
+        "account_hint": "Applies to {account}.",
         "no_folders": "No folders available."
       },
       "colorful_sidebar_icons": {
@@ -1242,6 +1243,10 @@
         "off": "Desativado",
         "seconds": "{seconds} segundos",
         "unsupported": "A conta atual não anuncia suporte a envio atrasado. A configuração continuará salva para outras contas."
+      },
+      "return_to_list_after_action": {
+        "label": "Return to list after delete or mark unread",
+        "description": "After deleting or marking the open message unread, go back to the message list instead of opening the next message."
       }
     },
     "composer": {
diff --git a/locales/ro/common.json b/locales/ro/common.json
index f6817394..a74b4405 100644
--- a/locales/ro/common.json
+++ b/locales/ro/common.json
@@ -925,6 +925,7 @@
         "description": "Afișați o intrare „Toate mesajele” deasupra folderelor, care reunește mesajele din toate folderele acestui cont într-o singură listă.",
         "folders_label": "Dosare în „Toate mesajele”",
         "folders_description": "Alegeți ce dosare să fie incluse în vizualizarea „Toate mesajele”.",
+        "account_hint": "Se aplică pentru {account}.",
         "no_folders": "Nu sunt disponibile foldere."
       },
       "colorful_sidebar_icons": {
@@ -1245,6 +1246,10 @@
         "off": "Oprit",
         "seconds": "{seconds} secunde",
         "unsupported": "Contul curent nu indică faptul că acceptă trimiterea amânată. Setarea este totuși salvată pentru alte conturi."
+      },
+      "return_to_list_after_action": {
+        "label": "Return to list after delete or mark unread",
+        "description": "After deleting or marking the open message unread, go back to the message list instead of opening the next message."
       }
     },
     "composer": {
diff --git a/locales/ru/common.json b/locales/ru/common.json
index 8e190757..f0523221 100644
--- a/locales/ru/common.json
+++ b/locales/ru/common.json
@@ -922,6 +922,7 @@
         "description": "Show an \"All Mail\" entry above your folders that merges messages from across this account's folders into one list.",
         "folders_label": "Folders in All Mail",
         "folders_description": "Choose which folders are merged into the All Mail view.",
+        "account_hint": "Applies to {account}.",
         "no_folders": "No folders available."
       },
       "colorful_sidebar_icons": {
@@ -1242,6 +1243,10 @@
         "off": "Выкл.",
         "seconds": "{seconds} сек.",
         "unsupported": "Текущая учетная запись не заявляет поддержку отложенной отправки. Настройка сохранится для других учетных записей."
+      },
+      "return_to_list_after_action": {
+        "label": "Return to list after delete or mark unread",
+        "description": "After deleting or marking the open message unread, go back to the message list instead of opening the next message."
       }
     },
     "composer": {
diff --git a/locales/tr/common.json b/locales/tr/common.json
index c4d55e91..922075d5 100644
--- a/locales/tr/common.json
+++ b/locales/tr/common.json
@@ -922,6 +922,7 @@
         "description": "Show an \"All Mail\" entry above your folders that merges messages from across this account's folders into one list.",
         "folders_label": "Folders in All Mail",
         "folders_description": "Choose which folders are merged into the All Mail view.",
+        "account_hint": "Applies to {account}.",
         "no_folders": "No folders available."
       },
       "colorful_sidebar_icons": {
@@ -1242,6 +1243,10 @@
         "off": "Kapalı",
         "seconds": "{seconds} saniye",
         "unsupported": "Geçerli hesap gecikmeli gönderim desteği bildirmiyor. Ayar diğer hesaplar için kaydedilmeye devam eder."
+      },
+      "return_to_list_after_action": {
+        "label": "Return to list after delete or mark unread",
+        "description": "After deleting or marking the open message unread, go back to the message list instead of opening the next message."
       }
     },
     "composer": {
diff --git a/locales/uk/common.json b/locales/uk/common.json
index d5e18dd9..57c192d7 100644
--- a/locales/uk/common.json
+++ b/locales/uk/common.json
@@ -922,6 +922,7 @@
         "description": "Show an \"All Mail\" entry above your folders that merges messages from across this account's folders into one list.",
         "folders_label": "Folders in All Mail",
         "folders_description": "Choose which folders are merged into the All Mail view.",
+        "account_hint": "Applies to {account}.",
         "no_folders": "No folders available."
       },
       "colorful_sidebar_icons": {
@@ -1242,6 +1243,10 @@
         "off": "Вимкнено",
         "seconds": "{seconds} с",
         "unsupported": "Поточний обліковий запис не повідомляє про підтримку відкладеного надсилання. Налаштування залишиться збереженим для інших облікових записів."
+      },
+      "return_to_list_after_action": {
+        "label": "Return to list after delete or mark unread",
+        "description": "After deleting or marking the open message unread, go back to the message list instead of opening the next message."
       }
     },
     "composer": {
diff --git a/locales/zh/common.json b/locales/zh/common.json
index 7bb1e41e..f672f599 100644
--- a/locales/zh/common.json
+++ b/locales/zh/common.json
@@ -922,6 +922,7 @@
         "description": "Show an \"All Mail\" entry above your folders that merges messages from across this account's folders into one list.",
         "folders_label": "Folders in All Mail",
         "folders_description": "Choose which folders are merged into the All Mail view.",
+        "account_hint": "Applies to {account}.",
         "no_folders": "No folders available."
       },
       "colorful_sidebar_icons": {
@@ -1242,6 +1243,10 @@
         "off": "关闭",
         "seconds": "{seconds} 秒",
         "unsupported": "当前账户未声明支持延迟发送。该设置仍会为其他账户保存。"
+      },
+      "return_to_list_after_action": {
+        "label": "Return to list after delete or mark unread",
+        "description": "After deleting or marking the open message unread, go back to the message list instead of opening the next message."
       }
     },
     "composer": {
diff --git a/stores/__tests__/settings-store-all-mail.test.ts b/stores/__tests__/settings-store-all-mail.test.ts
new file mode 100644
index 00000000..616a8b35
--- /dev/null
+++ b/stores/__tests__/settings-store-all-mail.test.ts
@@ -0,0 +1,55 @@
+import { describe, it, expect, beforeEach } from 'vitest';
+import { useSettingsStore } from '../settings-store';
+
+describe('settings-store per-account allMailFolderIds', () => {
+  beforeEach(() => {
+    useSettingsStore.setState({ allMailFolderIds: {} });
+  });
+
+  it('defaults to an empty record (every account "not configured")', () => {
+    expect(useSettingsStore.getState().allMailFolderIds).toEqual({});
+  });
+
+  it('keeps each account selection independent', () => {
+    useSettingsStore.setState({
+      allMailFolderIds: { 'acct-1': ['inbox', 'archive'], 'acct-2': ['sent'] },
+    });
+    const map = useSettingsStore.getState().allMailFolderIds;
+    expect(map['acct-1']).toEqual(['inbox', 'archive']);
+    expect(map['acct-2']).toEqual(['sent']);
+    // A third account remains unconfigured (no entry).
+    expect(map['acct-3']).toBeUndefined();
+  });
+
+  it('distinguishes explicit-empty ([] = no folders) from not-configured (undefined)', () => {
+    useSettingsStore.setState({ allMailFolderIds: { 'acct-1': [] } });
+    const map = useSettingsStore.getState().allMailFolderIds;
+    expect(map['acct-1']).toEqual([]);          // explicit "no folders"
+    expect(map['acct-2']).toBeUndefined();      // never configured
+  });
+
+  describe('importSettings legacy-shape guard', () => {
+    it('ignores a legacy global array shape', () => {
+      useSettingsStore.setState({ allMailFolderIds: { 'acct-1': ['inbox'] } });
+      const ok = useSettingsStore.getState().importSettings(
+        JSON.stringify({ allMailFolderIds: ['inbox', 'sent'] }),
+      );
+      expect(ok).toBe(true);
+      // unchanged - the array shape was rejected
+      expect(useSettingsStore.getState().allMailFolderIds).toEqual({ 'acct-1': ['inbox'] });
+    });
+
+    it('ignores a null legacy value', () => {
+      useSettingsStore.setState({ allMailFolderIds: { 'acct-1': ['inbox'] } });
+      useSettingsStore.getState().importSettings(JSON.stringify({ allMailFolderIds: null }));
+      expect(useSettingsStore.getState().allMailFolderIds).toEqual({ 'acct-1': ['inbox'] });
+    });
+
+    it('accepts a proper per-account record', () => {
+      useSettingsStore.getState().importSettings(
+        JSON.stringify({ allMailFolderIds: { 'acct-9': ['inbox', 'spam'] } }),
+      );
+      expect(useSettingsStore.getState().allMailFolderIds).toEqual({ 'acct-9': ['inbox', 'spam'] });
+    });
+  });
+});
diff --git a/stores/email-store.ts b/stores/email-store.ts
index 4f943d68..7e3b23ab 100644
--- a/stores/email-store.ts
+++ b/stores/email-store.ts
@@ -331,15 +331,19 @@ function resolveActionMailboxes(): Mailbox[] {
 
 /**
  * Resolves the JMAP mailbox ids that make up the gated "All Mail" view for the
- * active/viewing account. Honors the per-user `allMailFolderIds` setting; when
- * unset (null) it defaults to every non-special (no-role) folder. Shared
+ * active/viewing account. Honors that account's `allMailFolderIds` entry; when
+ * not configured it defaults to every non-special (no-role) folder. Shared
  * folders are excluded - All Mail is scoped to a single account. Returns
  * JMAP-side ids (originalId for namespaced mailboxes).
  */
 function resolveAllMailJmapIds(): string[] {
   const mailboxes = resolveActionMailboxes().filter((mb) => !mb.isShared);
-  const configured = useSettingsStore.getState().allMailFolderIds;
-  const selected = configured === null
+  // Per-account selection: read the entry for the account the view is scoped to
+  // (the Pro viewing override, else the global active account). A missing entry
+  // = "not configured" -> all no-role folders; an explicit [] = no folders.
+  const accountId = useEmailStore.getState().viewingAccountId ?? useAuthStore.getState().activeAccountId;
+  const configured = accountId ? useSettingsStore.getState().allMailFolderIds[accountId] : undefined;
+  const selected = configured === undefined
     ? mailboxes.filter((mb) => !mb.role)
     : mailboxes.filter((mb) => configured.includes(mb.id));
   return selected.map((mb) => mb.originalId || mb.id);
diff --git a/stores/settings-store.ts b/stores/settings-store.ts
index f119fda7..3a13aa34 100644
--- a/stores/settings-store.ts
+++ b/stores/settings-store.ts
@@ -15,6 +15,11 @@ const syncLog = (...args: unknown[]) => console.log('[SETTINGS_SYNC]', ...args);
 const syncWarn = (...args: unknown[]) => console.warn('[SETTINGS_SYNC]', ...args);
 const syncError = (...args: unknown[]) => console.error('[SETTINGS_SYNC]', ...args);
 
+/** True for a non-null, non-array plain object (the allMailFolderIds map shape). */
+function isPlainRecord(value: unknown): value is Record<string, unknown> {
+  return typeof value === 'object' && value !== null && !Array.isArray(value);
+}
+
 // Settings sync state (module-level, not persisted)
 let syncEnabled = false;
 let syncUsername: string | null = null;
@@ -137,6 +142,7 @@ interface SettingsState {
   markAsReadDelay: number; // milliseconds (0 = instant, -1 = never)
   deleteAction: DeleteAction;
   permanentlyDeleteJunk: boolean; // Permanently delete emails from junk/spam instead of moving to trash
+  returnToListAfterAction: boolean; // After delete / mark-unread in an open message, return to the list instead of opening the next message
   showPreview: boolean;
   mailLayout: MailLayout;
   emailsPerPage: number;
@@ -226,10 +232,10 @@ interface SettingsState {
   enableCrossStarredView: boolean;
   enableCrossAllView: boolean;
 
-  // Folder ids merged into the virtual "All Mail" mailbox. `null` = never
-  // configured, in which case the view defaults to all non-special (no-role)
-  // folders of the active account.
-  allMailFolderIds: string[] | null;
+  // Per-account "All Mail" folder selection, keyed by AccountEntry.id. A
+  // missing entry = "not configured" -> defaults to every no-role folder; an
+  // explicit [] = "no folders". (Replaced the legacy global string[] | null.)
+  allMailFolderIds: Record<string, string[]>;
 
   // Email Display
   disableThreading: boolean; // Show emails as individual messages instead of grouped by conversation
@@ -339,6 +345,7 @@ const DEFAULT_SETTINGS = {
   markAsReadDelay: 0, // Instant
   deleteAction: 'trash' as DeleteAction,
   permanentlyDeleteJunk: false,
+  returnToListAfterAction: true,
   showPreview: true,
   mailLayout: 'split' as MailLayout,
   emailsPerPage: 50,
@@ -416,7 +423,7 @@ const DEFAULT_SETTINGS = {
 
   // All Mail view (gated)
   enableAllMailView: false,
-  allMailFolderIds: null as string[] | null,
+  allMailFolderIds: {} as Record<string, string[]>,
 
   enableCrossUnreadView: false,
   enableCrossStarredView: false,
@@ -546,6 +553,7 @@ export const useSettingsStore = create<SettingsState>()(
           firstDayOfWeek: state.firstDayOfWeek,
           markAsReadDelay: state.markAsReadDelay,
           deleteAction: state.deleteAction,
+          returnToListAfterAction: state.returnToListAfterAction,
           showPreview: state.showPreview,
           mailLayout: state.mailLayout,
           emailsPerPage: state.emailsPerPage,
@@ -646,6 +654,11 @@ export const useSettingsStore = create<SettingsState>()(
                 set({ sendDelaySeconds: 0 });
                 return;
               }
+              // Ignore a legacy global allMailFolderIds (string[] | null) or any
+              // non-record value - this build keys it per account.
+              if (key === 'allMailFolderIds' && !isPlainRecord(settings[key])) {
+                return;
+              }
               if (DEVICE_LOCAL_SETTING_KEYS.has(key)) {
                 return;
               }
@@ -836,7 +849,7 @@ export const useSettingsStore = create<SettingsState>()(
     }),
     {
       name: 'settings-storage',
-      version: 4,
+      version: 5,
       migrate: (persisted, version) => {
         const state = persisted as Record<string, unknown>;
         if (version < 2 && state.listDensity) {
@@ -856,11 +869,25 @@ export const useSettingsStore = create<SettingsState>()(
         if (version < 4) {
           state.dateFormat = 'smart';
         }
+        // v5: allMailFolderIds went from a global `string[] | null` to a
+        // per-account `Record<accountId, string[]>`. The legacy global list
+        // can't be attributed to a specific account here (the active account
+        // isn't known at migrate time), so it's dropped - each account starts
+        // "not configured" (defaults to all no-role folders).
+        if (version < 5 || !isPlainRecord(state.allMailFolderIds)) {
+          state.allMailFolderIds = {};
+        }
         return state as unknown as SettingsState;
       },
       onRehydrateStorage: () => {
         return (state) => {
           if (state) {
+            // Defensive: a legacy global array or any non-record value (e.g.
+            // synced from an older client) is coerced to an empty map so
+            // per-account consumers never see a non-record.
+            if (!isPlainRecord(state.allMailFolderIds)) {
+              state.allMailFolderIds = {};
+            }
             applyFontSize(state.fontSize);
             applyDensity(state.density);
             applyAnimations(state.animationsEnabled);