1.11.2 fixes the Docker image and the standalone tarballs of 1.11.1, which did not start. It contains all the security fixes from 1.11.1, so please update.
Docker: The server starts again. 1.11.1 excluded data/ from the standalone build with a pattern that also dropped Next.js's own metadata modules, so the Docker image and the bulwark-standalone-* tarballs failed on startup. npm start and Bulwark Lite were not affected
1.11.1 is a security and bug-fix release. It fixes four reported vulnerabilities, two of them critical, and the findings of a security audit. Please update.
Admin: Only a Stalwart superuser gets into the admin dashboard. The admin probe accepted Stalwart's default tenant-admin role, so the administrator of a single tenant was signed into a dashboard that configures the whole instance (GHSA-v6hr-cmxm-pv73, thanks @douwezijlstra-frl)
Admin: Admin status is only taken from an admin-configured server. A context cookie minted while custom JMAP endpoints were allowed let a user-chosen server keep answering the admin probe after the switch was turned off (GHSA-j867-89p4-v8hm, thanks @Vip3r-MC)
API: Cross-origin writes are refused on the JMAP passthrough and every other cookie-authenticated /api/ route, not only /api/auth/*. A page on a same-site sibling origin could run arbitrary JMAP as the signed-in user. The gate also decides on the decoded path, so /api/%61uth/... no longer skips it (GHSA-9mvj-98f5-9q6g, thanks @kah-ja)
Admin: Admin sign-in attempts are also capped at 50 per 15 minutes across all clients, because a forged X-Forwarded-For got a fresh per-IP budget when no reverse proxy is in front (GHSA-7pj2-232x-6698, thanks @richardweinberger)
Admin: Impersonation no longer puts the Stalwart master password into the session cookie. The webmail creates an app password on the target mailbox that expires after 8 hours and is revoked on sign-out, and a used impersonation link is refused after a restart or on another replica
Mail: A sender can no longer fake a DMARC or DKIM pass in the security badges, with a crafted envelope address or an Authentication-Results header of their own
Mail: Opening an SVG attachment's thumbnail on its own no longer runs the sender's script in the webmail origin
Mail: Remote content stays blocked in the mobile conversation view, the .eml attachment preview, the quoted original of a reply or forward, the print view, and for URL spellings the filter missed (backslashes, CSS escapes, image-set())
Mail: Links in image maps (<area>) no longer keep window.opener
Mail: A mailto: unsubscribe goes to the single address in the link, and the confirmation shows recipient, subject and body before sending
Mail: A crafted winmail.dat no longer freezes the tab
Composer: A sender name containing a quote can no longer add a recipient to a draft
Filters: Rule names, header names and sizes are escaped, so rules from plugins or imported filter sets cannot add commands such as redirect to the Sieve script
Plugins: Hooks and slots need a declared permission, like the host API does. http.post can no longer reach the JMAP passthrough, /api/admin/*, /api/settings or other credentialed routes, and plugin storage is kept per account and deleted on sign-out
Themes: The theme CSS sanitizer no longer lets remote resources through (url(//host), CSS escapes, image-set(), @font-face sources), and theme CSS can only target :root and .dark, also when a plugin transforms it
Files: WOPI file downloads are always served as inert attachments, so a blob typed text/html cannot run script in the webmail origin
Server: The SSRF guard also blocks loopback beyond 127.0.0.1, CGNAT, benchmark, multicast and reserved ranges, and NAT64, 6to4 and Teredo addresses that wrap an internal IPv4 address. Telemetry targets are checked at connect time, and OAuth token and revocation requests never follow redirects
Auth: Synced settings are keyed on the account a bearer token belongs to, so on a multi-domain server john@b.example can no longer read the settings of john@a.example
Auth: Wrong passwords tried through the login pre-check are limited, so the route can no longer be used as a password oracle or trip Stalwart's ban against the webmail itself
Auth: Signing out ends office editor sessions opened in that browser, and a full sign-out clears search history, open tabs, Files recents, staged plugin uploads and the other accounts' leftovers, also in other open tabs
Auth: Signing out when another account's restore had failed no longer leaves that account resumable
Auth: The failed TOTP login no longer passes on a user-chosen server's error body
Server: Visitors who are not signed in no longer get detailed health data, the pending advisory text, the plugin list, the full admin policy or every server's domain list
Server: The setup token is passed in the URL fragment, so it stays out of access logs, referers and history
Server: Not-found pages outside the app tree cannot be framed, ALLOWED_FRAME_ANCESTORS never applies to the admin dashboard or setup, and sibling subdomains can no longer widen the sidebar-app frame-src
Server: Favicons are only served as raster images
Docker: Runtime state and secrets (data/, local-data/, .env) stay out of the standalone build and the image, and the mock JMAP server can no longer be switched on in a release build
Lite: Sign-out revokes the refresh token, and a failed token login no longer keeps the password in sessionStorage
Lite: Every static page gets a CSP that allows only its own inline scripts, the Stalwart bundle refuses to run inside a foreign frame, and the Stalwart install instructions use a tagged release with a published .sha256 instead of releases/latest
Features
Calendar: Tasks with a due date show in the month view (#1107)
Changes
Plugins: Hooks that change outgoing mail need email:send, and display takeovers need email:render-takeover. Plugins that don't declare them lose those hooks
Themes: Theme CSS keeps only :root and .dark rules plus @font-face, @keyframes, @media and @supports. Every url() except a #fragment is removed
Admin: Impersonated sessions end after 8 hours, and sessions minted by earlier versions are signed out
Server: /api/health?detailed=true needs a session
Fixes
Mail: The inbox keeps rendering when a message has an unparsable date (#1099)
Mail: A folder no longer switches back to the unified inbox while it loads (#1102, thanks @guisea)
Mail: Replies in the unified inbox come from the identity of the account that received the mail (#1104)
Mail: Mail deleted during a list refresh no longer reappears (#966)
Mail: The message list no longer jumps while attachment chips load
Mail: Scrolling the unified inbox, cross-account views, tag views and "All folders" search no longer skips messages
Mail: A failed message-list read keeps the list on screen instead of showing an empty folder
Mail: Marking read, starring, tagging, emptying a folder and cancelling a scheduled send report it when the server refuses them
Mail: Tagging and pinning write only the keywords that change, so they no longer mark mail unread that was read on another device
Mail: New mail and folder changes keep arriving for users with seven or more shared accounts
Send: A dropped connection can no longer send a message twice
Send: Undo and edit of a message sent from a group identity act in the group's own account
Composer: A reply draft stays in its thread when it is re-opened or undone
Composer: An open draft stays on its own account across an account switch
Accounts: Quick account switches no longer mix up identities, so replies go out with the right From address
Accounts: Folders, filters and the account security page no longer show the previous account's data after a switch
Accounts: Settings sync turns back on after signing out of one of several accounts
Push: A notification opens its message in the account it came from
Calendar: Events you declined show struck through (#1110)
Calendar: Daily recurring events keep going past a DST gap
Calendar: iCal subscriptions stay with the login that created them, so refreshing or removing one no longer touches a calendar of another login
Auth: SSO sign-in behind nginx no longer fails with a 502 when the cookies would overflow its header buffer (#1096)
Auth: Sign-in and addresses work on internationalized domains (#1100)
Lite: A rate-limited token endpoint no longer signs you out
i18n: The dark/light mode titles and the "Themes" settings tab are translated in every language (#1105, #1106, thanks @dulinux), and so is the themes settings panel
1.11.0 introduces Bulwark Lite, a static build of the webmail that runs without a Node server, and fixes many places where Bulwark and Stalwart disagreed about mail, filters, calendars, contacts and files. It contains everything from the three 1.11.0 betas. The latest Docker tag moves to this release.
Lite: Bulwark Lite, a static build that talks to the JMAP server straight from the browser. npm run build:lite builds it, and every release ships bulwark-lite-<version>.zip for any static web host
Lite: bulwark-lite-stalwart.zip, a Stalwart Application bundle that picks up its mount prefix at runtime, with OpenID Connect login
Mail: Toasts for mail actions that gave no feedback, and an "email sent" toast after immediate sends
Filters: "Keep a copy" option for forward actions
Filters: Per-rule "Also move messages marked as spam" option
Admin: Login page toggles in admin settings for the version, the 2FA code option, the heading and the subtitle (#1068)
Navigation: Deep links resolve to the local instance
Changes
Auth: Signing out of an SSO account also signs out of the identity provider when it advertises an end_session_endpoint (#905). Set OAUTH_END_SESSION=false to keep the provider session, for example when other apps share it, and OAUTH_POST_LOGOUT_REDIRECT_URI to send users back to the webmail afterwards
Filters: Move and copy rules leave mail that Stalwart marked as spam in Junk. Before, a rule such as "subject contains invoice" also collected phishing. "Keep" rules stay unguarded as the allow-list
Mail: Search sends terms exactly as typed, without adding a prefix wildcard, in tag views too
Mail: The message list loads attachment chips lazily, so large folders open faster (#1089)
Send: Scheduled send is limited to 7 days, the most Stalwart accepts
UI: Icon set migrated from Lucide to Tabler Icons
Docker: Pre-releases no longer move the latest tags
Docs: Most README details moved to the website docs, with new screenshots
Fixes
Mail: "All folders" search includes shared accounts (#1082)
Mail: A search inside a tag view narrows the tag instead of replacing it (#1084, thanks @rotterp)
Mail: Leaving an account drops a search folder scope that belongs to it (#1084, thanks @rotterp)
Mail: A failed search shows an error instead of "No results found"
Mail: In unified views, threads belong to the account that owns them (#1012, thanks @lucamzanon)
Mail: A failed move between accounts no longer deletes the original
Mail: "Mark all as read" marks every unread message instead of skipping pages past the first 500
Mail: Mark as spam and not spam report moves the server refuses
Mail: Unread-first order keeps bringing up unread mail past the first page
Mail: The tag button in a row's hover actions opens the tag picker instead of clearing the message's tags (#1032, thanks @douwezijlstra-frl)
Mail: Tag and tab counters no longer download every matching id
Mail: Text in fixed-width tables wraps to the screen on iOS (#1020)
Mail: Mail action toasts show again
Send: A send the server refuses is reported as failed instead of sent. When only filing the sent copy fails, a warning says so, so the mail is not sent twice
Send: A From override is also used as the envelope sender where the server accepts it. Where it doesn't, as on Stalwart, the composer says that the identity's address shows in the Return-Path (#1009)
Send: Sending with an identity adds its Bcc addresses
Composer: Attachments over the server's size limits are refused before upload
Composer: A staged attachment is kept until its upload finishes
Filters: Filters keep running while the auto-reply is on, and saving a filter no longer turns the auto-reply off
Filters: "Mark read", "star" and "add label" reach mail that the same rule moves, and rules keep their target folder after it is renamed
Filters: Forward actions respect the server's redirect limit (one on Stalwart) instead of being dropped without notice
Auto-reply: A warning appears before saving an auto-reply that Stalwart would refuse as too long
Calendar: Edits to a single occurrence stay on that occurrence and keep its details
Calendar: Date ranges are queried in the right time zone, and long recurring series or more than 1000 events no longer leave the calendar incomplete
Calendar: When the server refuses an event's invitations, you can save the event without sending them
Calendar: Subscriptions that fail with "Not authenticated" name the cause, such as a mail server certificate the webmail server does not trust (#1073)
Calendar: The subscription dialog no longer promises CalDAV URLs
Calendar: The import dropdown opens above the day and week views (#1049)
Contacts: Contacts with calendar, scheduling or free/busy links save, and cleared fields are cleared on the server
Contacts: vCard import no longer sends fields Stalwart rejects and writes addresses in the RFC 9553 form
Contacts: Deleting an address book that still holds contacts works
Files: Every file is listed, even when the account has more than maxObjectsInGet (#1069)
Files: Copying a folder copies its contents, and changes inside a shared drive go to the drive's account
Files: An upload or new folder whose name is taken becomes "name (2)" instead of failing
Files: Sharing works on Stalwart versions before 0.16.6
Files: Names Stalwart refuses are caught before sending, uploads store an accepted variant, and Office files keep their MIME type on Stalwart 0.16.6 and later
Account: You stay signed in after changing your password in settings
Account: Users who are not admins see their name, and changing the password or turning TOTP off asks for the current code
Auth: OAuth endpoints on the configured issuer's own host are accepted when they resolve to a private address, so split-DNS setups no longer need OAUTH_ALLOW_PRIVATE_ENDPOINTS (#1028)
Auth: Linking the mobile app re-authenticates against the account's own identity provider when OAuth is configured per server
Push: Push subscriptions are renewed before Stalwart's 7-day expiry, so a tab or app left open for over a week keeps getting notifications
Sharing: Principals are listed in directories with more than 500 users
Lite: The login page hides the server field once config.json sets jmapServerUrl (#1087)
Plugins: The plugin sandbox follows the app's "Automatic" language (#976, thanks @bartfaizoli76)
Pre-release. General test build for 1.11.0. Not recommended for production. The latest Docker tag stays on 1.10.0. To try it, use ghcr.io/bulwarkmail/webmail:1.11.0-beta.3.
Bulwark Lite zips (bulwark-lite-1.11.0-beta.3.zip for static hosts, bulwark-lite-stalwart.zip for Stalwart Applications) are attached once the Build Static Lite workflow finishes.
Added
Attendees can answer a single occurrence of a recurring event (#1086).
The message list loads attachment chips lazily, so large folders open faster (#1089).
Mail search sends search terms exactly as typed, without adding a prefix wildcard. This also applies in tag views.
Scheduled send is limited to 7 days, the most Stalwart accepts.
Fixed
"All folders" search includes shared accounts (#1082).
A search inside a tag view narrows the tag instead of replacing it.
Leaving an account drops a search folder scope that belongs to it (#1084, thanks @rotterp).
In unified views, threads belong to the account that owns them (#1012, thanks @lucamzanon).
A failed move between accounts no longer loses the message.
"Mark all as read" marks every unread message and reports spam moves the server refuses.
Send and search report failed JMAP calls instead of claiming success.
Attachments over the server's size limits are refused before upload.
Sending with an identity adds its Bcc addresses.
Tag and tab counters no longer download every matching id.
Mail filters keep running while the auto-reply is on, keep flags and folder targets when mail is moved, and no longer pull spam out of Junk.
A warning appears before you save an auto-reply that Stalwart would refuse as too long.
Edits to a single occurrence stay on that occurrence and keep its details.
Calendar ranges are queried in the right time zone and past the server limits.
If the server refuses an event's invitations, you are offered to save the event anyway.
The calendar subscription dialog no longer promises CalDAV URLs.
Contacts with calendar links or cleared fields save correctly.
Files lists every file, even when the account has more than maxObjectsInGet (#1069).
Files can copy whole folders and write to shared drives, shares files on Stalwart versions before 0.16.6, and handles file names and types Stalwart refuses.
You stay signed in after changing your password in settings.
Users who are not admins see their name and can change a TOTP password.
Push subscriptions are renewed before Stalwart's 7-day expiry.
Sharing lists principals in directories with more than 500 users.
The plugin sandbox follows the app's "Automatic" language (#976, thanks @bartfaizoli76).
Pre-release. This is a test build for Bulwark Lite. Not recommended for production. The latest Docker tag stays on 1.10.0. To try the server build, use ghcr.io/bulwarkmail/webmail:1.11.0-beta.2.
Bulwark Lite
bulwark-lite-1.11.0-beta.2.zip: unpack it on any static web host and set your JMAP server in config.json. The JMAP server must allow CORS from the webmail origin.
bulwark-lite-stalwart.zip: a Stalwart Application bundle that serves itself under the configured prefix (e.g. /webmail).
The Lite zips are attached once the Build Static Lite workflow finishes (a few minutes after publishing).
Changes since beta.1
Toasts for mail actions that had no feedback, plus an "email sent" toast after immediate sends
Toasts show again
Deep links resolve to the local instance
A staged attachment is kept until its upload finishes
Pre-release. This is a test build for Bulwark Lite. Not recommended for production. The latest Docker tag stays on 1.10.0. To try the server build, use ghcr.io/bulwarkmail/webmail:1.11.0-beta.1.
Bulwark Lite
Bulwark Lite is a static build of the webmail. It has no Node server: the browser talks to your JMAP server directly.
bulwark-lite-1.11.0-beta.1.zip: unpack it on any static web host (nginx, Caddy, S3, Pages…). Set your JMAP server in config.json. The JMAP server must allow CORS from the webmail origin.
bulwark-lite-stalwart.zip: a Stalwart Application bundle. Install it as an Application in Stalwart and it serves itself under the configured prefix (e.g. /webmail).
The Lite zips are attached once the Build Static Lite workflow finishes (a few minutes after publishing).
Please report problems with the Lite build in the issue tracker.
Also in this pre-release
New "Flat fields" theme
Icon set migrated from Lucide to Tabler Icons
Hardened Lite login, deep-link replay and settings gating
This release fixes six vulnerabilities reported by Jan Kahmen (turingpoint). Please update.
Mail: HTML mail could run script in the webmail origin. cid: references were rewritten to blob: URLs that kept the sender's Content-Type, and the reverse proxy skipped every security header — CSP included — on app paths whose last segment contains a dot, although the signed-in mail, calendar, contacts and files routes render there. Blob URLs are now retyped as inert, link clicks from the message frame are gated by scheme, and the proxy only skips headers for an explicit static-asset allowlist (GHSA-xvjh-v9c6-qcvc, thanks @kah-ja)
Auth: POST /api/auth/session and POST /api/auth/stalwart-context minted identity cookies without checking the supplied credentials against the JMAP server, so anyone could obtain a cookie for an arbitrary username and read that user's server-side settings. Credentials are now verified upstream before a cookie is issued: Basic credentials are bound to the account they authenticate, Bearer tokens to the session's username and identity. Deployments whose webmail container cannot reach the JMAP server no longer receive identity cookies, so cross-device settings sync stops working there (GHSA-wxcm-j4jc-9fxq, thanks @kah-ja)
Plugins: The /plugin-sandbox runtime trusted whichever window posted the first message, so a foreign site could window.open() it, post its own init, and run code under the route's unsafe-eval CSP in the app origin — with or without plugins enabled. The sandbox now only accepts its framing window, and the proxy refuses to serve the route outside an iframe or when plugins are disabled (GHSA-96cx-gx36-3g79, thanks @kah-ja)
Auth: Encrypted payloads now carry a purpose, so a WOPI editor access token can no longer be presented as a jmap_stalwart_ctx session cookie (GHSA-cqqx-mjcf-mh55, thanks @kah-ja)
Auth: Reject cross-site requests to /api/auth/*. A malicious page could POST the victim's browser into an attacker-controlled account (session fixation) (GHSA-qvr9-m8cq-7wvg, thanks @kah-ja)
Mail: Strip CR/LF and other control characters from the header values of generated read receipts. A crafted, RFC 2047-encoded subject could inject additional headers into the receipt (GHSA-w38p-hpqv-g89c, thanks @kah-ja)
Auth / Branding: Pin the resolved IP at connect time for stored custom JMAP endpoints and branding URLs too, closing the DNS-rebinding gap left after GHSA-24w9-8r42-8jwm
Features
Search: Global search across mail, contacts, calendar and files — query parser, ranking and cross-account providers, a search palette, and a search tab in the Pro shell with avatars, tinted icons and structured previews (#641); hits open through the owning login on every surface (#847)
Files: Office document editing through WOPI — Collabora Online, OnlyOffice and EuroOffice (#425); the demo Files drive ships office document fixtures and a word-processor icon
Calendar: Freely scrolling month, week and day views (#759), infinite scroll in the agenda view, and a setting to turn free scrolling off
Calendar: Recurring occurrences use Stalwart's synthetic ids (#140)
Calendar: Attendee free/busy via Principal/getAvailability
Calendar: Invitations and updates surface from CalendarEventNotification, and invitations are organized as the default ParticipantIdentity
Mail: Per-message HTML / plain-text toggle (#1022)
Mail: Share mail folders with other users via mail:share; share notifications appear as toasts
Mail: Search hits are highlighted with SearchSnippet/get
Mail: Pushes are resolved with Email/changes and Mailbox/changes deltas instead of refetching the list
Mail: Attachments show on list rows and open from there (#947, thanks @shukiv)
Mail: Filter advanced search by message size
Mail: Deleting a non-empty folder offers to delete its messages along with it
Mail: "Clear search when switching folders" setting (#852, thanks @shukiv)
CI: The test suite runs on every push and pull request (#647)
Dev: FileNode and blob round-trip in the mock JMAP server, and WOPI on the same-origin dev server
Changes
Docs: Installer section removed from the README and formatting cleaned up
Security policy: New vulnerability report email address
Fixes
Filters: Render the "Keep" action as fileinto "INBOX" (#1027)
Mail: List tagged mail from every account in the tag view, not just the selected folder's account (#1038)
Mail: Dragging a message out of the list could hang the tab when generated .eml file names collided (#1039)
Mail: Preserve label filtering during mailbox refreshes (#1017, thanks @ctaoist)
Mail: Hide body-embedded cid: parts declared as application/octet-stream from the attachment list (#1005, thanks @dealerweb)
Mail: Stop stretching images that carry their own max-width (#1034, thanks @shukiv), and let sender tables keep theirs (#790)
Mail: Refetch the body when JMAP truncates the displayed part instead of rendering a blank message (#928, thanks @hildebrandttk)
Mail: Auto-detect text direction in the read, print, plain-text, thread and .eml preview views (#663, thanks @shukiv)
Mail: Open search hits from shared folders in the right account (#923)
Mail: Collapse search hits for the same server object reached through several logins (#641)
Mail: Guard quick search against stale responses (#872, thanks @vj1235432)
Mail: Only show the unified mailbox section when it can be populated (#843), and stop it missing accounts that had not connected yet (#959, thanks @hildebrandttk)
Mail: Surface Email/set failures on delete and move (#956)
Mail: Report a missing archive mailbox instead of failing silently (#578), and archive shared-inbox mail into the owner's archive (#889)
Mail: Mark as spam from the viewer after the message left the list (#695)
Mail: Sort folders in the role assignment dropdown (#984)
Mail: Add the missing "Scheduled" folder role label (#495)
Mail: Wire the x shortcut to thread expansion (#683)
Mail: Keep the reading-mode toggle mounted so toolbar buttons stop jumping (#964)
Mail: Stop the batch toolbar hiding the message you just selected (#948, thanks @shukiv), keep rows in place when it opens, and drop the duplicate selection checkbox
Mail: Align the unread dot with the first line (#715, thanks @lucletoffe) and centre the sender avatar against the row (#953, thanks @shukiv)
Mail: Use Simplified Chinese for the selected-messages label (#786)
Send: Send from the address a message was delivered to (#991, thanks @rotterp)
Send: Set the answered flag when a reply goes out with a send delay (#985)
Composer: Upload attachments through the composing identity's account (#943)
Composer: Pro compose tabs default their From to the open mailbox (#990, thanks @rotterp)
Calendar: Jump to the day picked in the mini calendar (#1037, thanks @dealerweb)
Calendar: Wait for the JMAP client before loading the account principal, and recognise a refused principal read by its JMAP error type (#1036, thanks @dealerweb)
Calendar: Dedupe participants, resolve contact names across alias domains, and show the organizer's status (#986, thanks @ibayue)
Calendar: Linkify URLs in the event description (#968, thanks @lucletoffe)
Calendar: Normalize task progress states (#994, thanks @mulatta) and omit progressUpdated from the task completion payload (#958, thanks @sanitz)
Calendar: Preserve task alarms that the edit dialog does not show (#504)
Calendar: Report calendar clear failures instead of counting zero (#434)
Calendar: Make the iCal subscription size limit configurable and show the real error (#692)
Calendar: Paginate the event fetch on import so UID deduplication sees all existing events (#113)
Contacts: Strip the local-account prefix from address-book ids on contact update (#1043)
Contacts: Set name.full on all write paths so vCards carry the mandatory FN (#430)
Contacts: Create new contacts in the selected address book (#940, thanks @ponchofiesta)
Accounts: Detect HTTP/2 from the initial navigation timing so accounts are not capped at five (#1003, thanks @lucamzanon)
Auth: Reject wrong passwords server-side so the browser never shows its Basic Auth dialog (#969)
Auth: Stop retrying token refreshes that fail permanently (#972)
Auth: Normalize the OAuth discovery base so a session JMAP_SERVER_URL refreshes (#971, thanks @thejdubb02)
Auth: Use the selected server's issuer for SSO discovery (#952)
Auth: Retry the JMAP session fetch when a redirect drops the auth header (#892)
Auth: Drop max_age=0 from OIDC re-authentication requests (#938)
Auth: Require a session for the translate API (#903)
Mobile: Keep the actions panel below the status bar and pad attachment preview overlays for the iOS PWA safe area (#936)
Mobile: Render plain-text-only mail as text in the thread view (#489)
Mobile: Stop the More menu flashing open when a message is opened
Mobile: Dismiss the search panel once a search runs, open the folder drawer from the right in RTL (#944, thanks @shukiv), and keep the account switcher header on screen
PWA: Focus the client before navigating on notification click (#914, thanks @bitfactory-dk)
Push: Resolve push previews for shared and group mailboxes (#839)
Plugins: Allow sandbox chunk loading with CORS (#922, thanks @mulatta)
Plugins: Fail fast when the plugin storage database is blocked (#840)
Plugins: Refill missing managed bundles from the server (#636)
Plugins: Translations for plugins installed from the marketplace (#939, thanks @paulhenry46)
Settings: Index newer settings and the flat calendar toggles in the settings search
Settings: Invalidate the persisted update status after an upgrade
UI: Readable native <select> option lists in dark themes (#999)
i18n: German update (#1031, thanks @GyroGearl00se), "Forward as attachment" in more languages (#1016, thanks @dulinux), toolbar keys for nb and zh-TW (thanks @ibayue), and managed sidebar-app keys for zh-TW
i18n: Preserve locale cookie precedence and normalize Chinese proxy locale detection (thanks @kchuang1015); keep basePath when normalizing a Chinese Accept-Language
Calendar / Auth: Pin the resolved IP address at socket-connect time when fetching caller-supplied URLs (iCalendar subscriptions, JMAP login and TOTP token-exchange servers). The public-host check used to run before fetch() opened its socket, so an attacker who controlled DNS for a hostname could rebind it to loopback, RFC-1918 or cloud-metadata addresses between the check and the connect and read up to 10 MB of the internal response through the unauthenticated /api/fetch-ical endpoint. Redirect targets are now validated the same way (GHSA-24w9-8r42-8jwm, thanks @Tike00)
Features
Push: Re-sync existing push registrations in the background on app start, so registrations created before the delivery filter existed — or whose Junk mailbox id went stale — get repaired without re-enabling notifications
Fixes
Push: Stop sending notifications for spam — the push subscription now carries a JMAP emailPush delivery filter that excludes $junk and the Junk mailbox (needs a server advertising the emailPush capability, e.g. Stalwart ≥ 0.16.16; older servers keep the previous behaviour)
Navigation: Forward every request header through the proxy — Next 16.3's RSC header check rejected the stripped router headers and sent navigations into a 307 redirect loop (#919)
Calendar: Stop emitting RSCALE=GREGORIAN;SKIP=OMIT on plain Gregorian recurrence rules — DAVx5 rejected them as invalid and Android sync broke (#805, thanks @hildebrandttk)
Plugins: onBeforeComposeOpenToReply and sibling hooks let a plugin edit an email before it populates the composer for reply or forward
Plugins: getPublicKeyFromWKD
Plugins: Privileged plugins can fetch a byte range of a blob
Plugins: progressFileId on api.http.post so an offloaded upload reports byte progress to the composer chip
Plugins: isActive on AccountResponse
Plugins: Label settings and label reordering exposed to extensions
Plugins: JMAP keyword helpers and gateway keywords exposed to extensions
Plugins: Mailbox refresh hook
Dev: AddressBook/set in the dev mock JMAP server
Changes
Plugins: The PRF getOrCreate flow is split into separate get and create steps for better authenticator compatibility (#851)
Dependencies: Next 16.3.3, pdfjs-dist 6.2.108, DOMPurify 3.4.14 (npm audit)
Fixes
Send: Route scheduled sends to the account that owns the submission — mail scheduled from a shared address can now be listed, cancelled, and rescheduled instead of going out silently (#874)
Send: Split recipient lists whose angle brackets never close without dropping recipients
Send: generateMessageId crashed on insecure origins (crypto.randomUUID undefined), failing the send after the draft save
Composer: Keep attachments when re-opening a draft, also in the Pro draft tab, and destroy old draft versions only after a successful create or send (#849)
Composer: Keep the signature in saved drafts and embed it into re-opened drafts (#848)
Composer: Double-click unlocks the embedded signature for editing
Composer: Keep already written text when applying a template (#540)
Composer: Preselect the shared folder's identity for new messages
Composer: Namespace all accounts consistently in the Pro composer identity list
Composer: Opening a mailto: link runs the unsaved-draft dialog instead of replacing the draft outright
Composer: Keep the fresh-compose tab title clear of the selected email subject
Composer: Clear the viewer when sending destroys the displayed draft
Reply: Honour an external Reply-To even on a self-sent message
Mail: Flip $junk/$notjunk keywords on spam and not-spam (#850)
Mail: Remove keywords with null rather than false in Email/set, per RFC 8620
Mail: Escape the JSON Pointer in keyword patches so nested tags like work/clients patch the right keyword
Mail: Route keyword writes — tags, pins, flags — to the selected shared account so they persist
Mail: Route shared-folder management to the owner account, scoped to one server
Mail: Open the right conversations in a shared mailbox (#814)
Mail: Route multi-account email lookups and invitation parsing by source account (#847), and parse invitations in directly viewed shared folders against the folder owner (#867)
Mail: Folders containing a system folder name no longer disappear from the sidebar (#771)
Mail: Folder drag & drop can move folders into other parents (#855)
Mail: Keep the folder tree when a refresh burst hits maxConcurrentRequests (#780)
Mail: Stop All-Mail and cross-account views emptying on delete, star, or mark-read (#791)
Mail: Keep just-read or unstarred mail in the open Unread/Starred view
Mail: Search folder filter defaults to all folders and persists (#788)
Mail: Fixed-width read/unread toolbar button so buttons don't jump when a message opens (#864)
Mail: Transparent hover-action background on tagged rows
Mail: Enforce the external media preference on plugin-rendered bodies (#797)
Mail: Apply the data: URI allowlist to media tags and srcset candidates too
Mail: Make label reordering atomic
Mail: Pass PDF bytes to pdf.js instead of fetching the blob: URL that CSP connect-src blocks (#871)
Mail: Include email templates in cross-device settings sync (#825)
Mail: Toast store crashed on insecure origins, breaking every post-action acknowledgement
Mobile: Reach the tag and move submenus in the more-actions menu (#779)
Mobile: iOS Safari no longer zooms the viewport on every input focus (#838)
Calendar: Click and double-click create events at the clicked slot instead of near the current time
Calendar: Save and Cancel are available when an event is created, and the toolbar no longer overflows in edit mode
Calendar: Edit a single recurring occurrence via a one-shot override patch
Calendar: Hide tasks-only calendars from the event calendar
Calendar: Exclude subscription and read-only calendars from event creation (#762)
Calendar: Rights-first event editability, including alias organizers
Calendar: Pin supported-calendar-component-set on created calendars (#760)
Calendar: Gate first-touch calendar and contacts requests to stop duplicate default calendars (#907)
Calendar/Contacts: Namespace all accounts consistently on switch, so multi-account address-book aggregation and calendar selection survive an account switch
Contacts: Import vCard dates as RFC 9553 PartialDate and map common X- extensions (#224)
Files: Decode percent-encoded FileNode names from WebDAV-created nodes (#869)
Files: Reset the account-scoped Files drive on every account switch
Accounts: Refresh the account display name from the Stalwart principal on login, restore, and switch (#900)
Auth: Reuse the cached access token on session restore (#552)
Auth: Refresh TOTP-minted tokens with the default client id when no OAuth client is configured (#873)
Auth: Store the session cookie for relative JMAP server URLs
Security: Close IPv6 transition-address and redirect bypasses in the endpoint guard
Security: Add embedded custom app origins to CSP frame-src (#787)
Security: Per-account isolation for encryption at rest
JMAP: Cap live SSE streams per tab and keep exactly one stream per client, so many logins can't starve JMAP requests (#702)
JMAP: Check the specific capability a request declares (principals:owner), not a broader one
JMAP: Resolve relative session URLs without corrupting URI templates
Settings: Merge per-account maps on server load, fixing the compose identity switch
Settings: Leaving the Pro interface returns to the surface in use and keeps the settings scroll position
UI: Position portalled popovers before first paint to stop the layout flash on open
Push: Recreate the push subscription on re-register (#841)
i18n: Key parity across all 24 locales, Catalan and Mongolian registered in the client provider, and scoped translation hooks instead of relative namespace paths
Docs: Lengthen the example SESSION_SECRET so it meets the minimum length
A GitHub Actions incident left the 1.8.0 release build queued indefinitely, so no Docker image was ever published for that tag. 1.8.1 re-runs the release with the same code, plus one plugin slot that merged in the meantime.
Security: Manage S/MIME and PGP public keys and configure Stalwart encryption at rest from account security settings
Notifications: Background notification onboarding, sequenced after the PWA install prompt
Navigation: Deep links for mail, calendar, contacts, files, and settings, with screen-reader improvements
Settings: Always show the Unified Mailbox switch in Layout settings
i18n: Catalan translation
i18n: Localized editor toolbar across every locale
Plugins: Contact API — contact.get, contact.create, contact.update, contact.search
Plugins: contact-cryptokeys UI slot, behind the ui:contact-cryptokeys permission, so a plugin can render a contact's crypto keys in place of the built-in list
Plugins: user.getAccounts and user.getIdentities
Plugins: user.logout method and logout hook
Plugins: Crypto API — public-key management and encryption-at-rest control on the privileged tier
Plugins: onBeforeBlobUpload can offload an attachment to external storage
Plugins: Binary Blob/File bodies for api.http.post
Plugins: upfiles.get moved behind email:blob-read, off the privileged tier
Dev: Mock JMAP defaults now include nested tags
Changes
Mail: The "Reset to defaults" button is gone from tag settings — one stray click wiped a carefully built tag list, with no confirmation and no undo
Fixes
Send: Send through the identity's own account client so DKIM matches the From domain (#461)
Send: Split Name <addr> recipients into the JMAP name and email fields (#672)
Send: Time out stalled JMAP requests so a send can't hang forever (#702)
Mail: Keep inline images when replying to application/octet-stream cid parts (#543)
Mail: Reply on your own thread message no longer re-addresses the original recipients (#703)
Mail: Empty folder no longer stops after 500 emails (#711)
Mail: Move messages across accounts from the "Move to" context menu, preserving read state and deferring source removal to Stalwart
Mail: Stop resurrecting deleted rows in the mailbox refresh merge
Mail: Keep the message/rfc822 attachment visible after inline unwrapping
Mail: Strip sender and recipient names from forward-as-attachment filenames
Mail: Open mailto: links in the built-in composer
Mail: Spell out the full tag path in drag-and-drop toasts, so Personal/Receipts and Work/Receipts no longer read as the same tag
Mail: Act on current email state in the context menu's mark-as-read instead of a stale copy
Mail: Match the selected-row tint between dark and light mode
Mail: Restore lost animations after the Tailwind config move
Drafts: Restore the sender identity when reopening a draft
Calendar: Stop re-adding the organizer to the attendee list on every save (#731)
Calendar: Stop re-probing shared accounts that have no calendar access
Calendar: Route the parse dump through the debug logger
S/MIME: The built-in S/MIME implementation has been removed from core and re-delivered through the new generic crypto plugin hooks (privileged same-origin plugin tier). S/MIME signing, encryption, decryption, certificate management, and the related settings UI now live in a plugin rather than the main app. Deployments that relied on built-in S/MIME must install the S/MIME crypto plugin to retain those features.
Opt-in tabbed multi-pane interface for power users. Open multiple mail, calendar, contacts, and file views side-by-side, drag tabs to reorder or split panes at the edges, and work across all logged-in accounts in one shell, cross-account email moves, a unified inbox with search, account-split calendar/contacts/files sidebars, and a per-account "From" dropdown in the composer. Enable from Settings → Appearance; the proInterface preference is per-device and not synced.
Pro mode is experimental and we need your feedback to shape it. If something feels off, breaks, or is missing, please don't hesitate to open an issue or start a discussion on GitHub!
Breaking Changes
Plugins: Plugins now run inside a null-origin iframe sandbox and talk to the host over a postMessage RPC bridge. The in-process plugin runtime is gone; the bundled in-tree plugins have been migrated. Third-party plugins built against the old in-process API need to be ported to the sandboxed runtime.
Plugins: Server-managed bundles must be Ed25519-signed by the host and approved by an admin before they load. The host public key is served from /api/plugin-signing-pubkey and each bundle response carries the signature in the X-Bundle-Signature header. User-uploaded bundles still load unsigned, but managed marketplace and dev-folder bundles do not.
Plugins: bundleHash is now a full SHA-256 over the bundle. Legacy short hashes are migrated on first load; any out-of-band tooling that pinned the old hash format needs to be updated.
Features
Pro: Tabbed shell with drag-to-reorder, drag-to-edge to split, side-by-side panes, and pane-aware responsive layout with a scoped sidebar overlay
Pro: Auto-redirect to the Pro shell when Pro mode is on; proInterface is kept per-device instead of syncing
Pro: Multi-account mail sidebar with client routing and a per-account mailbox cache
Pro: Unified mailbox always visible, with full-text search
Pro: Cross-account email moves
Pro: Multi-account calendar sidebar split into owned vs shared per account
Pro: Multi-account contacts and a cross-account file picker
Pro: Composer From dropdown grouped by account
Plugins: Per-plugin admin approval workflow with Ed25519 bundle signing verified on load
Plugins: Marketplace update flow for installed plugins and themes
Setup: Allow the setup wizard over plain HTTP with a dismissable warning gate
Setup: Warn when the JMAP URL points at a local-only host
Account: List and reorder logged-in accounts from settings (#282)
Mail: Mobile handoff page with JMAP authentication verification for cross-device OAuth
First-launch web setup wizard. New installs no longer need to hand-edit .env.local - point a browser at the container and the wizard probes the JMAP server(s), configures OAuth/OIDC, generates the session secret, accepts branding uploads, and provisions the initial admin password. Admin storage is now split into ADMIN_CONFIG_DIR (operator-authored, mountable read-only after setup) and ADMIN_STATE_DIR (runtime audit log and login timestamps); the legacy ADMIN_DATA_DIR keeps working for existing installs.
Features
Setup: Web setup wizard with multi-step flow: Server, Auth, Security, Logging, Branding, Review, Admin
Setup: Admin config/state directory split with optional ADMIN_CONFIG_READONLY for immutable deployments (#226)
Setup: File uploads on the wizard branding step
Setup: Redesigned review step with grouped summary and an advanced toggle for the full config
Setup: Require explicit confirmation when JMAP probe finds no session
Mail: Drag attachments out of the viewer to the local file system (#267)
Mail: Configurable signature position – above or below quoted text (#266)
Mail: Signature position is now searchable from the email behavior settings
Mail: Show avatar in Focused list for compact density and above
Mail: Align Focused list preview with other layout previews
Compose: From-header override in the composer with catch-all auto-reply, replies to an alias on a domain you own pre-fill the alias as the sender even when it isn't a configured identity (#246)
Performance
Mail: Prefetch initial email data on login
Auth: Parallelize login round-trips and drop redundant JMAP re-verify
Fixes
Auth: Skip upstream JMAP reverify for trusted URLs (#237)
Auth: Show account identity in the switcher header instead of the sending alias
Compose: Fall back to the primary identity signature on reply
Setup: Drop redundant first-login banner about removing ADMIN_PASSWORD (#222)
UI: Consistent notice cards for server probe results
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