Linus Rath a27d014c59 fix: ask before a sign-in link from another app signs in
Any web page (one tap) or installed app (no tap) could fire a
`bulwarkmail://pair` link at the app, which then silently added the
sender's mailbox and switched to it, so the user might send or save mail
into an attacker's account. A `connect` link likewise opened any
server's sign-in page.

- Links that arrive from outside the app now ask first, naming the
  webmail's host and whether the link adds an account. Cancel discards
  the link for good; a link delivered again while the question is open
  is dropped. Codes scanned or pasted inside the app still go straight
  through.
- With the account registry full, a link shows the limit instead of
  opening "Add account".
- A pairing link for a plain-http webmail says the connection would be
  unencrypted instead of "That code isn't a Bulwark sign-in code", or
  nothing at all for a tapped link.
2026-09-27 05:11:07 +02:00
2026-09-27 00:34:53 +02:00

Bulwark Webmail

Bulwark Mobile

Beta - work in progress. Many features are unfinished or rough. Expect bugs, missing functionality, and breaking changes between releases. Do not rely on this for primary email yet.

React Native (Expo SDK 54) client for Bulwark Webmail - a JMAP-based mail, calendar, and contacts app.

What works today

  • Sign in to any JMAP server (e.g. Stalwart)
  • Multiple accounts
  • Email list, threads, compose
  • Calendar (basic)
  • Contacts (basic)
  • Push notifications via the Bulwark relay - FCM by default, or UnifiedPush (e.g. ntfy) for devices without Google Play services
  • In-app sideload updates from GitHub Releases

What's missing or rough

  • iOS builds, but push notifications and client certificates are Android-only so far
  • S/MIME, plugins, themes - UI stubs only (filters & rules, the vacation responder and file storage are real implementations)
  • Calendar editing is partial; contacts editing is basic
  • No Play Store distribution yet (sideload APK from Releases); iOS ships via TestFlight

Run locally

npm install
npx expo start

Then press a for Android, i for iOS, or scan the QR with Expo Go.

For release APK builds and signing see docs/android-release.md. For iOS builds and TestFlight distribution see docs/ios-release.md.

License

AGPL-3.0-only. See LICENSE.

S
Description
Bulwark Mobile: React Native client for iOS and Android. Mail, calendar and contacts over JMAP. Beta.
Readme AGPL-3.0
22 MiB
Languages
TypeScript 95.5%
Kotlin 2.7%
JavaScript 0.9%
HTML 0.5%
Sieve 0.2%
Other 0.1%