Languages: English & Swedish
Compatibility: Microsoft Windows 2008 (all editions, except for Core), Microsoft Windows Vista, Microsoft Windows 2003 (all editions), Microsoft Windows XP Professional, Microsoft Windows 2000 (all editions)
License: Freeware.
Author's description:
Welcome!
hMailServer is a free e-mail server for Microsoft Windows. It's used by Internet service providers, companies, governments, schools and enthusiasts in all parts of the world.

It supports the common e-mail protocols (IMAP, SMTP and POP3) and can easily be integrated with many existing web mail systems. It has flexible score-based spam protection and can attach to your virus scanner to scan all incoming and outgoing email.

Website : http://www.hmailserver.com/index.php?page=welcome
Download page: http://www.hmailserver.com/index.php?page=download