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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Spam Bully 3 for Outlook Express 

Outlook Express Bayesian spam filter. Allow/Block list. Bounce spam back to spammers. Report spammers. Forward only good email to your cellphone. Auto delete spam. Challenge emails. Stats. Convert the toolbar into your own language. Customizable.
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