E-mail Client

Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client (mailer, MUA).

* Simple, beautiful, and well-polished user interface
* Comfortable operationality which is built in detail
* Well-organized, easy-to-understand configuration
* Lightweight operation
* High reliability
* Security features (GnuPG, SSL/TLSv1)

KMail is the email component of Kontact, an integrated personal information manager.

The mail component is provided by KMail. Here a list of some highlights:

* IMAP, POP3 and SMTP support
* secure logons with SSL, TLS or DIGEST-MD5
* signing and encrypting of emails (both PGP and GnuPG are supported)
* reading of HTML mails
* anti-spam functions

Mozilla Thunderbird is an e-mail and news client developed by the Mozilla Foundation. The product is closely related to Mozilla Firefox, a project aimed at creating a web browser. With over 500,000 downloads in its first three days of release, and 1,000,000 in 10 days it quickly became one of the most popular applications on the market.

Claws Mail is a powerful and full-featured mail client formerly called Sylpheed-Claws. It is also extensible using loadable plugins, which can provide support for additional features, like other storage formats, feed reader, calendar management, mail filtering, etc.

Balsa is a highly configurable and robust lightweight mail client. It supports both POP3 and IMAP servers as well as the mbox, maildir and mh local mailbox formats. Balsa also supports SMTP and/or the use of a local MTA such as Sendmail.

Some of Balsa's other features include:

* Allowing nested mailboxes
* Printing
* Spell Checking
* Multi-threaded mail retrieval