Matthieu MALVACHE 8e659c1ed3 fix(print): shrink fixed-width HTML emails to fit on A4
Newsletter-style mail is usually laid out with width="600" or
style="width:640px" tables. On A4 with 12 mm margins the printable
width is closer to 180 mm, so the right edge of the content was
being clipped. Add print rules that cap every element in
#print-overlay to max-width: 100%, let tables auto-layout, and force
long URLs / single words to wrap instead of overflowing. Images,
svgs, videos and canvases also get max-width: 100% with auto height
so they scale down proportionally.
2026-04-17 14:32:36 +02:00
2026-03-16 12:41:37 +01:00

JMAP Webmail

A modern, privacy-focused webmail client built with Next.js and the JMAP protocol.

Screenshots

Login

Login

Inbox

Inbox

Email Viewer

Email Viewer

Compose

Compose

Dark Mode

Dark Mode

Settings

Settings

Features

Core Email

  • Modern UI - Clean, minimalist three-pane layout
  • Email Threading - Gmail-style conversation view with inline expansion
  • Real-time Updates - Push notifications for new emails via EventSource
  • Attachments - Upload and download file attachments
  • Search - Full-text email search with pagination
  • Draft Auto-save - Never lose your work while composing

Identity & Privacy

  • Identity Management - Multiple email identities with custom signatures
  • Sub-Addressing - Generate tagged email addresses (user+tag@domain.com) for better organization
  • Newsletter Management - RFC 2369 one-click unsubscribe with security validation
  • Spam Reporting - Mark emails as spam with bidirectional handling and batch operations
  • External Content Blocking - Privacy protection with user-controlled image loading
  • Shared Folders - Multi-account access with proper ID namespacing

User Experience

  • Keyboard Shortcuts - Navigate efficiently with vim-style hotkeys (j/k, r, f, etc.)
  • Context Menus - Right-click for quick actions on emails
  • Drag & Drop - Move emails between folders with native HTML5 DnD
  • Color Tags - Organize emails with color labels
  • Dark Mode - Full dark theme with intelligent email color transformation for readability
  • i18n - English, French, Japanese, Spanish, Italian, German, Dutch, and Portuguese language support with auto-detection
  • Mobile Responsive - Adaptive single/multi-pane layout for all screen sizes

Tech Stack

  • Framework: Next.js 16 with Turbopack
  • Styling: Tailwind CSS v4
  • State: Zustand
  • Protocol: JMAP (RFC 8620)
  • i18n: next-intl

Getting Started

# Install dependencies
npm install

# Run development server
npm run dev

Open http://localhost:3000 and connect to your JMAP server.

Configuration

Create a .env.local file:

APP_NAME=Your Webmail
JMAP_SERVER_URL=https://your-jmap-server.com

Runtime vs Build-time Configuration

Variable Type Description
APP_NAME Runtime App name displayed in the UI
JMAP_SERVER_URL Runtime JMAP server URL (required)
NEXT_PUBLIC_APP_NAME Build-time Legacy fallback for app name
NEXT_PUBLIC_JMAP_SERVER_URL Build-time Legacy fallback for server URL

Runtime variables are read at request time, enabling post-build configuration (ideal for Docker).

Build-time variables are baked into the bundle and require a rebuild to change.

License

MIT

S
Description
Modern JMAP webmail client built for Stalwart Mail Server. Privacy-focused, responsive, with real-time updates.
Readme MIT
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