Thunderbird
From the makers of Firefox, an open source email client that features tabbed browsing, filtering and timeline tools, plenty of customization, and robust security measures.
Free Mac apps
thriftmac
- Audio
- Backup
- Calculator
- Calendar
- Clipboards
- Compression
- Converters
- Deletion
- Drawing
- Education
- File Sharing
- Finance
- FTP
- Functionality
- Graphics Tools
- Health
- iTunes
- Journals
- Launchers
- Maintenance
- Markdown
- Media Hubs
- Media Players
- Menu Bar
- Messaging
- Miscellaneous
- News
- Notes
- Outliners
- Painting
- Photo Editing
- Screenshots
- Search
- Security
- System Monitors
- Terminal
- Text Editors
- Text Tools
- Three Dimensional
- Timers
- To-Do
- Utilities Misc
- Video
- Web Browsing
- Window Management
- Word Processors