[ShaRP]

Murder7
Лазил по сетке, вот что попалось:

http://www.versasoft.com/sa/html/spamaid.html

Supports Multiple POP3 Accounts - process all of your eMail addresses at the same time Uses your existing Windows Address Book for sender validation. No need to keep a separate list of acceptable senders; Spam-Aid uses the same list as Outlook Express Optional "code words" allow those who know you to contact you. Optional "Hints" notify rejected senders what code word to use. For example, if you wish to hear from anyone that knows your nickname, specify your nickname as a code word, and "What's my nickname?" as a hint DSL, ISDN, etc users can set Spam-Aid to run invisibly, notifying you when a valid email message is waiting Context-sensitive help Free to use! The Spam-Aid download is completely functional and free of charge. It is not a "trial version", it has no advertisements or requests for donations

Добавлено:

Чуть не забыл самое главное:
Spam-Aid is a free POP3 eMail utility for detecting and deleting messages from unknown senders.
- т.е. эта программа именно того рода, которая требовалась - "убью всех, кого не знаю".