1 - Kerio MailServer 6.4.1 Patch 1 Kerio MailServer is a secure multi-domain mail server with integrated SpamAssassin anti-spam, collaboration features, mailing lists, and a variety of SSL encrypted communication protocols (POP3, IMAP, STMP, WebMail and WAP). License: Demo OS: Mac OS X 10.3 Size: 75.8 MB