List of mail server software

This is a list of mail server software: mail transfer agents, mail delivery agents, and other computer software which provide e-mail within Internet message handling services (MHS).

Product statistics

According to one survey, sendmail, Microsoft Exchange Server, Postfix, and Exim together control over 90% of market share for SMTP service in 2014.[1]

Another survey suggests a more balanced distribution, though it included hosted e-mail services such as Postini.[2]

These surveys are rather difficult to produce,[3] hence it is no surprise if they disagree.

SMTP

POP/IMAP

Mail filtering

See also

References

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