mailbench 0.5.7

A Python email client for Kerio Connect

Mailbench

A desktop email client for Kerio Connect mail servers, built with Python and Qt.

Features

• Multi-account support - Connect to multiple Kerio Connect servers
• 3-pane layout - Folders, message list, and preview pane
• Compose, Reply, Forward - Full email composition with HTML support
• WebEngine-based editor - Rich HTML compose with inline image support
• Attachments - View, download, and attach files
• Address book integration - Autocomplete from Kerio contacts and cached addresses
• Local caching - SQLite database for offline message access
• Drag and drop - Move messages between folders
• Block sender/domain - Drag messages to block folders
• Message flagging - Flag important messages
• Keyboard shortcuts - Efficient navigation and actions
• Zoom support - Ctrl+scroll or shortcuts to adjust preview size

Security Features

• Remote image blocking - Prevents email tracking pixels
• External link warnings - Shows domain before opening links
• Phishing detection - Warns about homograph/lookalike domains
• Dangerous attachment warnings - Alerts for executable files
• HTML sanitization - XSS protection for message display
• Secure credential storage - Uses system keyring for passwords

Requirements

• Python 3.10+
• Kerio Connect mail server with JSON-RPC API access

Installation

# Clone the repository
git clone https://github.com/jpsteil/mailbench.git
cd mailbench

# Create virtual environment
python -m venv venv
source venv/bin/activate  # On Windows: venv\Scripts\activate

# Install dependencies
pip install -e .

Usage

mailbench

On first run, go to Accounts > Add Account to configure your Kerio Connect server.

The status bar displays a permanent zoom indicator showing the current preview zoom level.

Keyboard Shortcuts

Shortcut	Action
Ctrl+N	New message
Ctrl+R	Reply
Ctrl+Shift+R	Reply All
Ctrl+F	Forward
Ctrl+Scroll	Zoom preview
Ctrl++ or Ctrl+=	Zoom in
Ctrl+-	Zoom out
Ctrl+0	Reset zoom
Ctrl+Enter	Send message (in compose)
Delete	Delete message
Escape	Clear filter / Discard compose

License

MIT License - see LICENSE file.