Sylpheed adopts 3-paned display similar to the popular e-mail clients for Windows such as Outlook Express and Becky.The user-interface is comfortable operational.
Stability and the protection of data is taken into account to the fullest extent. Storing several thousand messages doesn't affect the stability. Even if the application is forcibly terminated, there is almost no possibility of the lost of mail, or inconsistent state of mailboxes.
Sylpheed supports not only the major protocols such as POP3, IMAP4rev1 and SMTP, but also NNTP (NetNews) but also IPv6, which is the next-generation Internet protocol. Sylpheed optionally supports the signing and encryption of messages by GnuPG, and the encrypted communication of POP3/IMAP4/NNTP over SSL/TLSv1.
Internet and communication
Windows, Mac, Linux
Product page: here