Xeams is a secure & powerful mail server for Windows, Linux, Solaris, MacOSX and other flavors or UNIX, which supports SMTP, POP3, and IMAP. It includes a powerful spam/junk filtering engine that elimates up to 99% of junk email right out of the box. The software offers a flexible approach to email, making it a very user friendly server.
Xeams can be run in 3 different configurations:
1. Full Email Server - No other email server is required
2. Spam Firewall - Processes junk emails and forwards good messages to another email server, such as Microsoft Exchange, Sendmail or Novel Groupwise.
3. Hybrid Mode - A combination of both options providing redundancy to your email infrastructure More Info »
Xeams is completely free for personal use.