Rework the sidebar "All accounts" section into a "Unified Mailbox" that, by
default, stays within the active login account and its shared/group folders.
Merging across multiple logged-in accounts becomes an opt-in sub-option instead
of the default, and the standalone per-account "All Mail" virtual folder is
folded into the unified All mail / Unread / Starred entries (its folder selection
now narrows those lists).
Scope:
- lib/unified-mailbox.ts: UnifiedAccountClient.crossIncludedMailboxIds; the cross
views honor the per-account folder selection (union across accounts = the sum
of each account's selection), falling back to inbox+custom when unset.
- stores/email-store.ts: buildUnifiedAccountClients gains scopeToClientAccountId
(the account boundary) and populates crossIncludedMailboxIds from
allMailFolderIds; remove the standalone __all_mail__ fetch/search/load-more
branches.
- page.tsx: scope to the active account unless cross-account is active (per-user
opt-in AND admin gate); the per-role unified mailboxes obey the same scope.
Folding:
- Drop ALL_MAIL_MAILBOX_ID (lib/jmap/types.ts); thread-list source-folder column
now keys on isUnifiedView only; settings folder picker moves under the unified
group and shows once any unified entry is enabled.
Config:
- User: new unifiedCrossAccount (default false); includeGroupInUnified default
flips to true; enableAllMailView retired; the three cross-view toggles now gate
the unified Unread/Starred/All mail entries.
- Admin: new unifiedCrossAccountEnabled gate, default FALSE (cross-account is an
admin opt-in; when off the per-user toggle is hidden and the scope is forced
account-bounded at runtime). allMailViewEnabled deprecated and normalized
forward into crossAllViewEnabled on policy load; cross-view gate labels reworded
to "Unified Mailbox: ...".
Header: the sidebar section shows "All accounts" when cross-account is active
(opt-in AND admin gate AND >1 connected account), else "Unified Mailbox".
Migration:
- Settings persist v5 -> v6 (exported migrateSettings) - cross-active users keep
cross-account; All-Mail-only users get the account-bounded unified All mail
entry with folder ids preserved; includeGroupInUnified enabled for every
migrated config; fresh installs are account-bounded.
- Admin policy: one-shot, marker-guarded migratePolicyUnifiedMailbox (run before
configManager.load) enables unifiedCrossAccountEnabled when a cross view was
active, so existing cross-account installs keep the behaviour despite the
default-false gate. Skipped on read-only config dirs.
Locales: sidebar all_accounts (original label) + unified_mailbox (translated, per
locale) keys; dead standalone all_mail strings removed across all 20 locales.
Docs: FEATURES.md updated to the account-bounded model, the cross-account gate,
and the folder-narrowed aggregate entries.
Verification: tsc clean, eslint clean, full vitest suite green (incl. translations
completeness, cross-view/migration coverage, and the admin policy migration test).
Add cross-account aggregate mail views and make group/shared (delegated)
accounts first-class in every aggregate view. (The unified mailbox, the "All
Mail" view, and "include group inboxes" already exist on main; this branch adds
the cross-account views and the shared-account correctness work.)
New views (admin-gated + per-user toggle, nested under Unified Mailbox):
- Cross-account "All accounts": All unread / All starred / All mail across every
connected account, including shared/group folders. Each list labels the source
folder of every message.
Source reference on aggregated emails (the core of the shared-account work):
- Replace the overloaded `accountId` with two explicit, always-set fields:
`sourceClientAccountId` (the login the mail is reachable through) and
`sourceAccountId` (the owning JMAP account). `accountId` stays display-only.
- Resolution is branch-free everywhere: pick the client by sourceClientAccountId,
pass sourceAccountId as the JMAP accountId (no-op for personal), read the
owner's mailbox list cached by JMAP id. No capability scan.
Shared/group-account correctness across all aggregate views:
- Route open (click + auto-fetch), thread/conversation open + reply-refresh,
mark read, star, move, delete (account-scoped trash), archive (owner-routed
createMailbox / fetchAccountMailboxes), and spam + undo via the source ref.
- Add accountId params to toggleStar / batchMarkAsRead / batchDeleteEmails /
createMailbox where missing.
- Fix local unread/total counter math for shared folders via emailInMailbox()
(matches namespaced shared ids and bare own ids).
- Keep the unified/cross virtual selection on background mailbox refresh (no
jump back to inbox after deleting in All Drafts/Junk).
Junk UX:
- In "All Junk" the spam action becomes "not spam" in the viewer, context menu,
and list hover icons; undo routes shared mail back to its own inbox.
Admin:
- Policy gates crossUnread/Starred/AllViewEnabled, each noting the matching
per-user toggle (allMailViewEnabled clarified too).
i18n / docs / tests:
- locales (19): cross-view labels + descriptions and hover not_spam, translated
in all shipped languages.
- FEATURES.md + README.md document the new views and group-account support.
- Tests for shared-account routing (single + batch + undoSpam), decoration, and
unified-selection preservation.
Stefan Hildebrandt