I'm looking for an extremely lightweight mail server to handle IMAP/POP3 connections. Maildir backend preferably, with multiple authentication modes (SQL, LDAP, etc).
closed as not constructive by Chris S♦ Jan 27 '12 at 4:42
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If you are using *nix for your platform, dovecot is pretty much the standard. Nearly every unix distro has it available in its ports / package management system.
If you are on Windows, hmail may be a fair choice.