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Postfix is a free software / open source mail transfer agent (MTA), a computer program for the routing and delivery of email. It is intended as a fast...

Clam AntiVirus (ClamAV), is a free open source antivirus software toolkit for Windows and Unix-like operating systems. One of its main uses is with ma...

Sendmail is a mail transfer agent (MTA) that is a well known project of the Open Source, free software and Unix communities, which is distributed both...

qmail is a mail transfer agent that runs on Unix. It was written by Daniel J. Bernstein as a more secure replacement for the popular Sendmail program....

The Courier mail server is a mail transfer agent (MTA) server that provides ESMTP, IMAP, POP3, webmail, and mailing list services with individual comp...

getmail is intended as a simple, secure, and reliable replacement for fetchmail. It retrieves email (either all messages, or only unread messages) fro...

A ruby module that allows for the simple creation of MIME email messages with multiple body parts and attachments

MailArchiva is a powerful, full featured email archiving solution for Microsoft Exchange. It stores all incoming, outgoing and internal emails for lon...

Postfix Admin is a Web-based management tool for Postfix. It handles Postfix-style virtual domains and users that are stored in MySQL. It has support...

PHP email transport class featuring multiple file attachments, SMTP servers, CCs, BCCs, HTML messages, and word wrap, and more. It can send email via ...