Commercial mailserver with unlimited domains, mailboxes and mailing lists, graphical administration tool.

Database-based server for Win2000/WinXP/Win2003 includes features of SMTP/POP3/SMTP Auth, ISP mailboxes binding, anti-spam, email monitoring, and UTF-8 web mail. Features, FAQ, Screenshot and Downloads. [Commercial, trial version]

Has help, configuration and tips section. Supports SMTP, POP3, IMAP4, and WebMail and features remote administration and virus protection. [Windows 98, Me, NT, 2000, XP and 2003]

Combines an e-mail gateway, sms and POP3 server. Includes news, datasheets and overview of products and services.

Provides Windows-based software, including an email server with antivirus and antispam protection, Outlook integration, and network fax management.

GPL licensed IMAP4rev1 server for Maildir, written in C++. It strives to be stable, fast, flexible, and RFC compliant.

Free POP and SMTP server including aliases, auto-dialling, and internal routing. [Win]

Features easy to use control over email domains, mailboxes and aliases for small or medium businesses and home environments. Has history and installation and configuration help. [Windows]

Features multi-domain support, mailbox accounts with protection mechanisms enabling access to POP3/IMAP4 mail clients.

An SMTP/IMAP/POP3 and webmail server with extensions for mailing list management and spam filtering. [GNU/Linux, Unix]