Courier
Courier was the evolution of the Calypso email client. It kept messages and attachments, account settings, filters, address book and program settings (including UI) within a single encrypted mailbox file.
Features
- Support for multiple email accounts
- Configurable, intuitive interface
- Support for POP and IMAP mailboxes
- Ability to turn HTML mail viewing on or off in any window with a single mouse click
- "Color Markers" to help organize your messages
- Automatic mailbox backup
- Mailing list support, including "Blind Send" capabilities
- Superb mail filtering capabilities, including advanced anti-SPAM tools.
- Easily configurable for server and proxy based anti-SPAM programs.
- Address auto-completion when composing mail
- Multi-language spelling support
- Auto-response capability
- Mail templates
- Mail archiving
- Optional password protection for mailboxes
