Follow-up to 0e0d99e7, which sends the batch actions of a unified view,
a tag view or an "All folders" search to each message's own login and
account.
- Batch Archive in a tag view or the default "All folders" search
failed with "archive mailbox not found", and "Not spam" in a tag view
entered from Junk with "Inbox not found": the folder lists came from
a cache only the unified views fill. In the Pro shell the list cached
under the bare account id could be another server's, so a browsed
login's messages were archived or deleted into whatever folder has
the other server's Archive or Deleted Items id. A batch's Archive,
Inbox and Deleted Items now come from the list cached for its login
and account, else from that login's own folder list, never from the
bare account id.
- "Move to" in a list that mixes accounts looked the picked folder up
in the login browsed before. In the Pro shell, after browsing a
folder of another login, the active login's mail went to that other
server. The menus list the active login's folders, so the folder is
looked up there now.
- Dragging one row moved every listed row with its id, including
another account's unrelated message. The drop hands the store the
dragged rows now.
- "Spam" and "Not spam" on a selected id that is not a row of the list,
such as a member of an expanded thread, wrote to the account the list
is reached through, where the id can name another message. Such ids
are looked up among the expanded threads now, and one found nowhere
is reported and left alone.
- A move sent in batches (500 messages each by default) stopped at a
refused batch while the list counted the unsent ones as moved. The
other batches go out, and only what the server left alone stays
listed.
Website · Documentation · Live demo · Releases · Discord
Bulwark Webmail is a self-hosted webmail client for Stalwart Mail Server. It talks to Stalwart over JMAP and puts mail, calendar, contacts and files behind one login, with one set of settings and one admin dashboard.
Contents
- Screenshots
- Features
- Quick start
- Other ways to install
- Configuration
- Documentation
- Development
- Community and support
- License
Screenshots


Calendar week view · Contact details with recent mail and upcoming events

Composer with identities and formatting · Light and dark themes
Features
- Mail: threading, unified inbox, cross-account views, full-text search, Sieve filters, S/MIME, templates, scheduled send
- Calendar: month, week, day and agenda views, recurring events, iMIP invitations, CalDAV subscriptions
- Contacts: several address books, groups, vCard import and export
- Files: Stalwart's JMAP file storage, with previews, sharing and folder upload
All four share single sign-on and 2FA, multiple accounts, 27 languages, PWA install and web push, themes, plugins and keyboard shortcuts. The full list is on the All features page.
There are two editions. The full edition runs as a Node.js server and adds the admin dashboard, OAuth, plugins and settings sync. Bulwark Lite is the same client as static files, served by any web host or by Stalwart itself.
Quick start
docker run -d -p 3000:3000 ghcr.io/bulwarkmail/webmail:latest
Then open http://localhost:3000. A setup wizard asks for your Stalwart server and an admin password. The installation guide has the details, and Stalwart setup covers the mail server side.
Other ways to install
| Method | Guide |
|---|---|
| Docker Compose | Compose |
| Behind a reverse proxy or on a sub-path | Reverse proxy |
| From source, without Docker | Manual install |
| Lite on any static host | Static hosting |
| Lite as a container | Container image |
| Lite served by Stalwart | Install on Stalwart |
Updating explains how to move to a new version.
Configuration
Most installs are set up in the wizard on first launch and changed later in the admin dashboard. You can also use environment variables, which fit read-only or immutable deployments better. When both set the same key, the value saved in the admin config wins, so an environment variable only fills in what the admin config leaves unset.
JMAP_SERVER_URL=https://mail.example.com
APP_NAME=My Webmail
| Topic | Guide |
|---|---|
| Overview, config files and precedence | Configuration |
| Every variable | Environment reference |
| OAuth2 / OIDC and single sign-on | Authentication, Embedded SSO |
| Several JMAP servers, custom endpoints | Multi-server deployments, Custom endpoints |
| Branding, logos, per-domain branding | Customization |
| Anonymous telemetry (off by default) | Anonymous usage stats |
Documentation
All documentation is at bulwarkmail.org/docs:
- Getting started: Introduction, Installation, Editions, Bulwark Lite, Demo mode
- Deployment: Docker, Manual install, Static hosting, Install on Stalwart, Updating
- Guides: Admin dashboard, Account security, Impersonation, Plugins, Marketplace, Troubleshooting
- Extensions: Introduction, manifest.json, Publishing
- Development: Architecture, Contributing
- Legal: Privacy
The pages are Markdown files in the website repository. Send corrections there.
Development
git clone https://github.com/bulwarkmail/webmail.git
cd webmail
npm install
cp .env.dev.example .env.local # built-in mock JMAP server, no mail server needed
npm run dev
npm run typecheck
npm run lint
npx vitest run # unit tests
npm run test:integration # Stalwart in Docker + Playwright
The contributing guide covers tests, translations, code style and pull requests. Architecture explains how the code is organized.
The stack: Next.js 16 and React 19, TypeScript, Tailwind CSS v4, Zustand, Tiptap, next-intl, Tabler Icons, and our own JMAP client (RFC 8620). Tests run on Vitest and Playwright.
Community and support
- Questions: check Troubleshooting, then ask on Discord.
- Bugs and feature requests: open a GitHub issue.
- Security vulnerabilities: report them privately to dev@bulwarkmail.org or through a security advisory, never in a public issue.
- Release notes: CHANGELOG.md and the GitHub releases.
License
GNU AGPL v3. This repository preserves the original MIT attribution for the fork lineage in NOTICE.
Acknowledgments
Thanks to root-fr/jmap-webmail and @ma2t for the groundwork this project builds upon.

