Sylpheed Sylpheed is a fast email and news client, with support for SMTP, POP3, IMAP4 and NNTP. It handles multiple mail accounts, threaded display, junk mail filtering, Security options (GnuPG, SSL/TLSv1), GPG integration, search, etc.

Features:

- Simple, beautiful, and well-polished user interface
- Comfortable operationality which is built in detail
- Well-organized, easy-to-understand configuration
- Lightweight operation
- High reliability
- Internationalization and Multilingualization support
- High-level Japanese processing
- Various protocols support
- Security features (GnuPG, SSL/TLSv1)
- Powerful filtering and search
- Junk mail control
- Flexible cooperation with external commands