docs: rework README with logo, improved layout, and updated features

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Linus Rath
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<div align="center">
<img src="app/favicon.ico" alt="Bulwark Webmail" width="80" />
# Bulwark Webmail
A webmail client for [Stalwart Mail Server](https://stalw.art/), built with Next.js and the JMAP protocol.
A modern, self-hosted webmail client for [Stalwart Mail Server](https://stalw.art/).<br/>
Built with Next.js and the JMAP protocol.
## Why Stalwart?
[![License: MIT](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE)
[![Version](https://img.shields.io/badge/version-1.1.2-green.svg)](CHANGELOG.md)
[![Docker](https://img.shields.io/badge/docker-ghcr.io%2Fbulwarkmail%2Fwebmail-blue)](https://ghcr.io/bulwarkmail/webmail)
Stalwart is a mail server written in Rust with native JMAP support, not IMAP/SMTP with JMAP added as an afterthought. It handles JMAP, IMAP, SMTP, and ManageSieve. Self-hosted, no third-party dependencies.
</div>
[Stalwart on GitHub](https://github.com/stalwartlabs/mail-server) | [Documentation](https://stalw.art/docs/)
---
## Screenshots
<table>
<tr>
<td width="50%">
<img src="screenshots/02-inbox.png" width="100%" alt="Inbox — three-pane layout with sidebar, email list, and viewer">
</td>
<td width="50%">
<img src="screenshots/05-dark-mode.png" width="100%" alt="Dark mode">
</td>
</tr>
<tr>
<td width="50%">
<img src="screenshots/04-compose.png" width="100%" alt="Compose with templates and autocomplete">
</td>
<td width="50%">
<img src="screenshots/06-settings.png" width="100%" alt="Settings">
</td>
</tr>
</table>
<details>
<summary>More screenshots</summary>
<table>
<tr>
<td width="50%">
<img src="screenshots/01-login.png" width="100%" alt="Login page">
</td>
<td width="50%">
<img src="screenshots/03-email-viewer.png" width="100%" alt="Email viewer with thread expansion">
</td>
</tr>
</table>
</details>
## Features
### Email
### Mail
- Read, compose, reply, reply-all, and forward
- HTML rendering with DOMPurify sanitization
- Attachment upload and download
- Draft auto-save with discard confirmation
- Threading with inline expansion
- Mark as read/unread, star/unstar
- Archive and delete with configurable behavior
- Color tags/labels
- Search with JMAP filter panel, search chips, cross-mailbox queries
- Virtual scrolling for large lists
### Interface
- Three-pane layout with dark and light themes
- Responsive (desktop sidebar + mobile bottom tab bar)
- Keyboard shortcuts
- Drag-and-drop email organization
- Right-click context menus
- Animations that respect `prefers-reduced-motion`
- Infinite scroll pagination
- Toast notifications with undo support
- Form validation with shake feedback
- Safe area insets for notched devices
- Screen reader live regions
### Real-time
- Push notifications via JMAP EventSource
- Live unread counts
- Email arrival notifications
- Connection status indicator
### Identity management
- Multiple sender identities with per-identity signatures
- Sub-addressing (user+tag@domain.com) with tag suggestions
- Identity badges in viewer and list
### Address book
- Contact management with search and filtering
- JMAP server sync (RFC 9553/9610) with local fallback
- Email autocomplete in composer
- Contact groups with group expansion
- vCard import/export (RFC 6350) with duplicate detection
- Bulk operations (multi-select, delete, group add, export)
- **Read, compose, reply, reply-all, forward** with rich HTML rendering
- **Threading** — Gmail-style inline expansion with thread navigation
- **Draft auto-save** with discard confirmation
- **Attachments** — upload, download, and inline preview
- **Search** — full-text with JMAP filter panel, search chips, and cross-mailbox queries
- **Batch operations** — multi-select, archive, delete, move, tag
- **Color tags/labels** and star/unstar
- **Virtual scrolling** for large mailboxes
- **Quick reply** from the viewer
### Calendar
- JMAP Calendar (RFC 8984) with capability detection
- Month, week, day, and agenda views
- Event create, edit, delete with recurrence and reminders
- Participant scheduling with iTIP invitations and RSVP
- Inline calendar invitation banner in email viewer (.ics detection, RSVP, import)
- Multi-day events, column-based overlap layout
- Mini-calendar sidebar with calendar visibility toggles
- Locale-aware date formatting
- Settings for first day of week, time format (12h/24h), default view
- Drag-and-drop rescheduling with time snap
- Click-drag on empty slots to create events
- Resize events by dragging (15-minute snap)
- Double-click quick create
- Event duplication (+1 day offset)
- Recurring event edit/delete scope (this, this and following, all)
- iCalendar (.ics) file import with preview
- Real-time updates via JMAP push
- Event notifications with configurable sound
- **Month, week, day, and agenda views** with mini-calendar sidebar
- **Drag-and-drop rescheduling**, click-drag creation, edge-resize (15-min snap)
- **Recurring events** with edit/delete scope (this / this and following / all)
- **Participant scheduling** — iTIP invitations, organizer/attendee UI, RSVP
- **Inline calendar invitations** in email viewer — auto-detect `.ics`, RSVP, import
- **iCalendar import** with preview and bulk create
- **Notifications** with configurable sound and alert persistence
- **Real-time sync** via JMAP push
### Email templates
### Contacts
- Reusable templates organized by category
- Placeholder variables (`{{recipientName}}`, `{{date}}`, etc.) with auto-fill
- Template picker in compose toolbar with search and filter
- Template manager in settings
- **Contact management** with JMAP sync (RFC 9553/9610) and local fallback
- **Contact groups** with group expansion and member management
- **vCard import/export** (RFC 6350) with duplicate detection
- **Autocomplete** in composer (To/Cc/Bcc)
- **Bulk operations** — multi-select, delete, group add, export
### Email filters
### Filters & Automation
- Server-side filtering with JMAP Sieve Scripts (RFC 9661)
- Visual rule builder: conditions (From, To, Subject, Size, Body...) and actions (Move, Forward, Mark read, Star, Discard, Reject...)
- Raw Sieve editor with syntax validation
- Auto-save with rollback on failure
- Drag-and-drop rule reordering
- Only shown when the server supports Sieve
- **Server-side email filters** via JMAP Sieve Scripts (RFC 9661)
- **Visual rule builder** — conditions (From, To, Subject, Size, Body) and actions (Move, Forward, Star, Discard)
- **Raw Sieve editor** with syntax validation
- **Vacation responder** with date range scheduling and sidebar indicator
- **Email templates** — reusable, categorized, with placeholder auto-fill (`{{recipientName}}`, `{{date}}`, etc.)
### Vacation responder
### Security & Privacy
- JMAP VacationResponse with date range scheduling
- Settings tab for message configuration
- Sidebar indicator when active
- **External content blocked** by default — trusted senders list for auto-load
- **HTML sanitization** via DOMPurify with XSS prevention
- **SPF/DKIM/DMARC** status indicators
- **OAuth2/OIDC with PKCE** for SSO (Keycloak, Authentik, or built-in)
- **TOTP two-factor authentication**
- **"Remember me"** — AES-256-GCM encrypted httpOnly cookie (opt-in)
- **Security headers** — CSP with per-request nonce, X-Frame-Options, Referrer-Policy
- **Newsletter unsubscribe** (RFC 2369)
### Security and privacy
### Interface
- External content blocked by default
- Trusted senders list for automatic image loading
- HTML sanitization (DOMPurify)
- SPF/DKIM/DMARC status indicators
- Session-based auth, no password storage by default
- TOTP two-factor authentication
- "Remember me" with AES-256-GCM encrypted httpOnly cookie (opt-in)
- OAuth2/OIDC with PKCE for SSO (opt-in, RP-initiated logout)
- External IdP support (Keycloak, Authentik) via configurable issuer URL
- CORS misconfiguration detection with detailed error messages
- Shared folder support
- Newsletter unsubscribe (RFC 2369)
- CSP, X-Content-Type-Options, X-Frame-Options, Referrer-Policy headers
- **Three-pane layout** — sidebar, email list, viewer
- **Dark and light themes** with intelligent email color transformation
- **Responsive** — desktop sidebar + mobile bottom tab bar
- **Keyboard shortcuts** — full navigation without a mouse
- **Drag-and-drop** email organization between mailboxes
- **Right-click context menus**, toast notifications with undo, form validation with shake feedback
- **Accessibility** — WCAG AA contrast, reduced-motion support, focus trap, screen reader live regions
### Internationalization
- 8 languages: English, French, Japanese, Spanish, Italian, German, Dutch, Portuguese
- Automatic browser language detection
- Persistent language preference
8 languages: English · Français · 日本語 · Español · Italiano · Deutsch · Nederlands · Português
### Deployment
Automatic browser detection with persistent preference.
- Pre-built Docker images on [Docker Hub](https://hub.docker.com/r/bulwarkmail/webmail) and [GHCR](https://ghcr.io/bulwarkmail/webmail) (amd64/arm64)
- Multi-stage build with standalone output
- Runtime environment variables (no rebuild needed)
- Health check endpoint
- Structured logging (text/JSON)
- Update check on startup (server logs only, no client exposure)
### Identity Management
## Tech stack
- **Multiple sender identities** with per-identity signatures
- **Sub-addressing** — `user+tag@domain.com` with contextual tag suggestions
- **Identity badges** in viewer and email list
- [Next.js 16](https://nextjs.org/) with App Router
- TypeScript
- [Tailwind CSS v4](https://tailwindcss.com/)
- [Zustand](https://zustand-demo.pmnd.rs/) for state management
- Custom JMAP client (RFC 8620)
- [next-intl](https://next-intl-docs.vercel.app/) for i18n
- [Lucide React](https://lucide.dev/) icons
---
## Getting started
## Quick Start
### Prerequisites
### Docker (recommended)
- Node.js 18+
- A JMAP-compatible mail server ([Stalwart](https://stalw.art/) recommended)
```bash
docker run -d -p 3000:3000 \
-e JMAP_SERVER_URL=https://mail.example.com \
ghcr.io/bulwarkmail/webmail:latest
```
### Installation
Or with Docker Compose:
```bash
cp .env.example .env.local
# Edit .env.local — set JMAP_SERVER_URL
docker compose up -d
```
### From Source
```bash
git clone https://github.com/bulwarkmail/webmail.git
cd webmail
npm install
cp .env.example .env.local
# Edit .env.local — set JMAP_SERVER_URL
npm run build && npm start
```
### Configuration
### Development
```bash
npm run dev # Start dev server (mock JMAP server included)
npm run typecheck # Type checking
npm run lint # Linting
```
## Configuration
Edit `.env.local`:
```env
# App name displayed in the UI
APP_NAME=My Webmail
# Your JMAP server URL (required)
# Required
JMAP_SERVER_URL=https://mail.example.com
# Optional
APP_NAME=My Webmail
```
These are runtime environment variables, read at request time. Docker deployments can be configured without rebuilding. Legacy `NEXT_PUBLIC_*` variables still work as fallbacks.
All variables are **runtime** — Docker deployments can be configured without rebuilding.
#### OAuth2/OIDC (optional)
To enable SSO login alongside Basic Auth:
<details>
<summary>OAuth2/OIDC (SSO)</summary>
```env
OAUTH_ENABLED=true
@@ -184,118 +199,50 @@ OAUTH_CLIENT_SECRET= # optional, for confidential clients
OAUTH_ISSUER_URL= # optional, for external IdPs (Keycloak, Authentik)
```
Endpoints are auto-discovered via `.well-known/oauth-authorization-server` or `.well-known/openid-configuration`. If your JMAP server delegates auth to an external IdP, set `OAUTH_ISSUER_URL` to the IdP's base URL (e.g., `https://keycloak.example.com/realms/mail`).
Endpoints are auto-discovered via `.well-known/oauth-authorization-server` or `.well-known/openid-configuration`.
</details>
#### Remember me (optional)
To enable "Remember me" for Basic Auth login:
<details>
<summary>Remember Me</summary>
```env
SESSION_SECRET=your-secret-key # Generate with: openssl rand -base64 32
```
When set, a "Remember me" checkbox appears on the login form. Credentials are encrypted with AES-256-GCM and stored in an httpOnly cookie (30-day expiry).
Credentials encrypted with AES-256-GCM, stored in an httpOnly cookie (30-day expiry).
</details>
### Development
```bash
npm run dev # Start dev server
npm run typecheck # Type checking
npm run lint # Linting
```
### Production
```bash
npm run build
npm start
```
### Docker
```bash
# Pre-built image
docker run -p 3000:3000 -e JMAP_SERVER_URL=https://mail.example.com bulwarkmail/webmail:latest
# From GHCR
docker run -p 3000:3000 -e JMAP_SERVER_URL=https://mail.example.com ghcr.io/bulwarkmail/webmail:latest
# With docker compose
cp .env.example .env.local
# Edit .env.local with your JMAP_SERVER_URL
docker compose up -d
# Build from source
docker build -t bulwark-webmail .
docker run -p 3000:3000 -e JMAP_SERVER_URL=https://mail.example.com bulwark-webmail
```
## Keyboard shortcuts
## Keyboard Shortcuts
| Key | Action |
|-----|--------|
| `j` / `k` | Navigate between emails |
| `Enter` / `o` | Open selected email |
| `Esc` | Close viewer / deselect |
| `c` | Compose new email |
| `r` | Reply |
| `R` / `a` | Reply all |
| `Enter` / `o` | Open email |
| `Esc` | Close / deselect |
| `c` | Compose |
| `r` / `R` | Reply / Reply all |
| `f` | Forward |
| `s` | Toggle star |
| `s` | Star |
| `e` | Archive |
| `#` / `Delete` | Delete |
| `u` | Mark as unread |
| `/` | Focus search |
| `x` | Expand/collapse thread |
| `Ctrl+Shift+T` | Insert template |
| `?` | Show shortcuts help |
| `#` | Delete |
| `/` | Search |
| `?` | Show all shortcuts |
## Screenshots
## Tech Stack
<table>
<tr>
<td width="50%">
| | |
|---|---|
| **Framework** | [Next.js 16](https://nextjs.org/) with App Router |
| **Language** | TypeScript |
| **Styling** | [Tailwind CSS v4](https://tailwindcss.com/) |
| **State** | [Zustand](https://zustand-demo.pmnd.rs/) |
| **Protocol** | Custom JMAP client (RFC 8620) |
| **i18n** | [next-intl](https://next-intl-docs.vercel.app/) |
| **Icons** | [Lucide React](https://lucide.dev/) |
**Login**
<img src="screenshots/01-login.png" width="100%" alt="Login">
## Why Stalwart?
</td>
<td width="50%">
**Inbox**
<img src="screenshots/02-inbox.png" width="100%" alt="Inbox">
</td>
</tr>
<tr>
<td width="50%">
**Email Viewer**
<img src="screenshots/03-email-viewer.png" width="100%" alt="Email Viewer">
</td>
<td width="50%">
**Compose**
<img src="screenshots/04-compose.png" width="100%" alt="Compose">
</td>
</tr>
<tr>
<td width="50%">
**Dark Mode**
<img src="screenshots/05-dark-mode.png" width="100%" alt="Dark Mode">
</td>
<td width="50%">
**Settings**
<img src="screenshots/06-settings.png" width="100%" alt="Settings">
</td>
</tr>
</table>
[Stalwart](https://github.com/stalwartlabs/mail-server) is a mail server written in Rust with **native JMAP support** — not IMAP/SMTP with JMAP bolted on. It handles JMAP, IMAP, SMTP, and ManageSieve in a single binary. Self-hosted, no third-party dependencies.
## Contributing
@@ -303,13 +250,8 @@ See [CONTRIBUTING.md](CONTRIBUTING.md) for guidelines.
## Roadmap
See [ROADMAP.md](ROADMAP.md) for planned features.
## Acknowledgments
- [Stalwart Labs](https://stalw.art/) for the mail server
- The [JMAP](https://jmap.io/) working group for the protocol spec
See [ROADMAP.md](ROADMAP.md) for planned features and current status.
## License
MIT. See [LICENSE](LICENSE).
[MIT](LICENSE)