TabMail

TabMail for Windows (95/98/Me/NT/2000/XP) is mail user agent (MUA) for sending, receiving and managing your email messages. It's small and fast, conforms Internet Standards and supports Unicode characters.

Some other properties:

* Automatic attachments compression with zlib library

* Warn when open (or save) dangerous attachments

* Message filtering (input and output) using regexp TRE library

* Spam filtering using SpamBayes message header additions

* Simple view of compound messages

* Message-thread can span many mailboxes

* HTML messages view as plain text (see htmlp for more details).

* Easy PGP message encryption/decryption

* SMTP and POP3 authentication

* Support for SSL/TLS connections

* Scanning attachments for viruses

* Multi-user and multi-account

* Tracing for diagnosing TCP, POP3, SMTP or filter errors