1)   Spam Buster 1.10.2
Delete junk e-mail from 12 pop accounts, can run in system tray, includes customizable list of rules and statistics. Top 10 spammers and spam domains. List of friends and custom rules to suit your personal situation.

 2)   NUCEM Spam Terminator 3.0
NUCEM Spam Terminator compared to the best competitors anti-spam solutions is 3 times more accurate at differentiating between valid e-mail and SPAM. The best competitors anti-spam solution barely achieves a TCR of 12 while NUCEM has a TCR of 37.

 3)   mxORB 2.2.3
mxORB is a server-side spam filter that consistently blocks over 98% of unsolicited commercial email (also known as spam) at a fraction of the cost of other filtering solutions.

 4)   SpamBurner 1.67
A sophisticated and powerful anti-spam program, and e-mail viewer, with a remarkably efficient, easy-to-use, and intuitive interface.

 5)   SPAMReporter 2.0
A powerful automatic SPAM Reporting tool that lets you help the ISPs shut Spam down at the source by identifying the source of the Spam. Much more effective for fighting Spam than simply filtering it.

 6)   Spam Monitor 2.5
Spam Monitor is an easy-to-use spam filter that detects and isolates unsolicited junk mail sent to your mailbox. Designed for people that aren't computer experts, Spam Monitor's powerful wizard configures your PC with the safest anti-spam options.