List of mail servers - Definition and Overview

This is a list of mail servers: mail transfer agents, mail delivery agents, and other computer software which provides email services.

SMTP

• Sendmail
• Postfix
• qmail
• Exim
• ZMailer [1] (http://zmailer.org)
• Courier (software) [2] (http://courier.sourceforge.net)
• MMDF [3] (http://mmdf.sourceforge.net)
• Microsoft Exchange Server
• ArGoSoft Mail Server [4] (http://www.argosoft.com/mailserver)
• Merak Mail Server [5] (http://www.merakmailserver.com)
• Kerio MailServer
• MailEnable Mail Server [6] (http://www.mailenable.com)

POP/IMAP

• UW IMAP - uses mbox format.[7] (http://www.washington.edu/imap/)
• Courier IMAP - uses Maildir format.[8] (http://www.courier-mta.org/imap/)
• hMailServer [9] (http://www.hmailserver.com/) - MySQL-based, open source, GPL for MS Windows
• Microsoft Exchange Server
• Cyrus IMAP server [10] (http://asg.web.cmu.edu/cyrus/imapd/)
• Stalker Communigate Pro [11] (http://www.stalker.com/CommuniGatePro/)
• ArGoSoft Mail Server [12] (http://www.argosoft.com/mailserver/)
• Merak Mail server [13] (http://www.merakmailserver.com/)
• Kerio MailServer
• MailEnable Mail Server [14] (http://www.mailenable.com/)

Mail filtering

• Procmail
• Vipul's Razor
• SpamAssassin
• Bayesian filters