Aggressive Spam Defense 

Detects most spam+virus emails right after install. Will further adapt during use. Color-codes emails to quickly see which are important. Safe preview is immune to viruses and will not silently 'call home'. Clean, attractive and efficient interface.
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Purgy 

Anti-spam software for Windows. It accepts emails from senders you trust while asking unknown senders to verify themselves by replying to an email. After positive verification it adds them to your approved sender list and delivers all their messages.
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Piranha 

Spam Piranha anti-spam program, works with all e-mail clients. Never lose another e-mail to spam filters. Achieve 98%+ spam removal. Designed to be easy to install and use. State of the art spam detection. You can earn money by simply using Piranha.
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(STEVEN) 

(STEVEN) The new way to eliminate spam with a newly designed self validation system that puts spam in its place and doesn't rely on key lists.
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KnockKnock 

Anti Spam program eliminates unsolicited e-mails in your inbox. KnockKnock is a complete e-mail enhancement program and spam solution, and works with your current Email client. Easy features handles, multiple e-mail accounts on multiple servers.
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Spam Filter for Outlook 

Spam Filter utilizes the latest technology which learns from spammers messages and continually adjusts itself to protect your mailbox. Using proactive rather than reactive methods for eliminating spams, it can block over 99% of spam.(SFSBCB)
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