西爾菲德
描述：
Sylpheed provides intuitive user-interface. Sylpheed is also designed for keyboard-oriented operation, so Sylpheed can be widely used from beginners to power users.
特徵：
- Simple, beautiful, and well-polished user interface
- Comfortable operationality which is built in detail
- Well-organized, easy-to-understand configuration
- Lightweight operation
- High reliability with one-mail-corresponding-to-one-file format
- Extensibility by plug-in faculty
- Powerful filtering and search
- Junk mail control
- Security features (GnuPG, SSL/TLSv1)
- Various protocols support
- Internationalization and Multilingualization support
- High-level Japanese processing
- Flexible cooperation with external commands
