Webmail built for
Stalwart
A modern, self-hosted email client powered by the JMAP protocol. Email, calendar, contacts — fast, private, and open source.
John Doe
john@example.com
Q4 Product Roadmap Review
Hi team, I've attached the updated roadmap for Q4. Please review the priorities and...
[webmail] New pull request #142
feat: Add calendar drag-and-drop rescheduling with snap to 15-minute intervals...
Re: Weekly standup notes
Thanks for sharing. I think we should also discuss the migration timeline in the next...
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Invoice #2026-0312 for $49.00 has been generated. View your invoice and payment...
Design system updates
Hey, I've pushed the new component library changes. Can you check the button...
[webmail] New pull request #142
noreply@github.com
To: john@example.com
Wed, Mar 11, 2026, 09:15 AM
4.2 KB
@devops-bot opened a new pull request:
feat: Add calendar drag-and-drop rescheduling
Adds the ability to reschedule calendar events via drag-and-drop with snap to 15-minute intervals. Includes undo support and optimistic UI updates.
Changes: 12 files changed, +847 −203
Reviews: 1 approval, 0 changes requested
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New email
Re: David Park — Design system updates
Everything you need
in a webmail client.
Full Email Experience
Read, compose, reply, reply-all, forward with threading, attachments, draft auto-save, virtual scrolling, color tags, and drag-and-drop organization.
Calendar Integration
JMAP Calendar (RFC 8984) with month, week, day, agenda views. Drag-and-drop rescheduling, resize, recurring events, iTIP invitations with RSVP from email.
Contacts & vCard
Contact management with JMAP sync (RFC 9553/9610), vCard import/export, groups, autocomplete in composer, duplicate detection, and bulk operations.
Sarah Chen
sarah@acme.co
Alex Morgan
alex.m@corp.io
Sam Wilson
sam.w@dev.org
Powerful Search
JMAP filter panel with search chips, cross-mailbox queries, and advanced filtering by sender, date, attachment and more.
Real-time Push
JMAP EventSource for live updates. Instant unread counts, email arrival notifications, and connection status indicator.
New email from Sarah C.
just now
PR #847 comment added
2m ago
Privacy & Security
SPF/DKIM/DMARC indicators, external content blocking, DOMPurify sanitization, TOTP 2FA, OAuth2/OIDC with PKCE, and trusted senders list.
Identity Management
Multiple sender identities with per-identity signatures. Sub-addressing (user+tag@domain.com) with tag suggestions and identity badges.
Personal
alex@gmail.com
Work
alex@acme.co
Open Source
alex+oss@dev.io
Sieve Email Filters
Visual rule builder for server-side filtering (RFC 9661). Conditions, actions, raw Sieve editor with syntax validation, and drag reorder.
Email Templates
Reusable templates with placeholder variables, organized by category. Template picker in compose toolbar with search and filter.
Vacation Responder
JMAP VacationResponse with date range scheduling. Settings tab for message configuration and sidebar indicator when active.
Keyboard Shortcuts
Full keyboard navigation for power users. Navigate, compose, archive, delete, star — all without reaching for the mouse.
Light & Dark Themes
System-aware theming with smooth transitions. Three-pane layout with responsive design for desktop and mobile.
8 Languages
English, French, Japanese, Spanish, Italian, German, Dutch, Portuguese. Auto-detection with persistent preference.
Easy Deployment
Docker images on GHCR (amd64/arm64). Runtime env vars, health check endpoint, structured logging, and update check on startup.
â–Š
See it in action
A polished interface designed for productivity.
How Bulwark compares
See how Bulwark stacks up against other webmail clients and hosted providers.
| Feature | ★ This projectBulwark | Roundcube | Rainloop | SOGo | Gmail | Outlook |
|---|---|---|---|---|---|---|
| JMAP Native | ||||||
| Self-Hosted | ||||||
| Calendar | ||||||
| Contacts | ||||||
| Real-time Push | ||||||
| Dark Mode | ||||||
| i18n (8+ langs) | ||||||
| Modern Stack | ||||||
| Privacy First | ||||||
| Docker Deploy | ||||||
| Mobile App | ||||||
| Plugin Ecosystem | ||||||
| Offline Mode |
Modern tech stack
zero compromises.
Next.js 16
App Router with Turbopack
TypeScript
Type-safe codebase
Tailwind CSS v4
Utility-first styling
Zustand
Lightweight state management
JMAP Protocol
RFC 8620 — native, not bridged
next-intl
Internationalization for 8 languages
DOMPurify
HTML sanitization for email safety
Lucide Icons
Beautiful, consistent iconography
date-fns
Modern date utility library
How it works
No custom REST API between the browser and the mail server. JMAP is the API.
Browser
React + Zustand
JMAP Server
Email, Calendar, Contacts
Auth Bootstrapping Only
Next.js API routes handle credential encryption (AES-256-GCM), httpOnly cookie management, and OAuth 2.0 PKCE token exchange. After auth, the browser talks JMAP directly.
Zustand Stores
Feature stores (email, calendar, contacts, sieve, etc.) are initialized conditionally based on server capabilities discovered via JMAP session.
Deploy in seconds
One command to install. Or use Docker / build from source.
Get involved
Bulwark is MIT-licensed and developed in the open. Bug reports, translations, and code contributions all happen on GitHub.
A modern webmail client built on the JMAP protocol
Frequently asked questions
Everything you need to know about Bulwark.
Ready to take control of your email?
Self-host your webmail with Stalwart. No tracking, no ads, no compromises.