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Mozilla Mail/News - http://www.mozilla.org/mailnews/
Technical information and project documentation of the integrated email and news client in the Mozilla Suite. |
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i.Scribe/InScribe - http://www.memecode.com/scribe.php
A lightweight cross platform email client, supporting POP3, IMAP4 (fetch), [E]SMTP, SOCKS5, and MIME with an integrated contact database and calendar. |
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Mahogany - http://mahogany.sourceforge.net/
An OpenSource cross-platform mail and news client available for X11/Unix and MS Win32 platforms, supporting SMTP, POP3, IMAP, NNTP, and full MIME support. |
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OpenSmtp.Net - http://sourceforge.net/projects/opensmtp-net/
An SMTP component written in C#. Allows developers to use SMTP servers other than MS SMTP and has a web service that allows the sending of email via HTTP/SOAP. [BSD License.] Windows only. |
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eMailman - http://www.emailman.com/aol/
Enables using third party e-mail programs to receive or send AOL mail. |