http://www.macnn.com/articles/02/08/07/postarmor.1.2:/
PostArmor 1.2: Java-based spam filter
updated 08:10 am EDT, Wed August 7, 2002
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PostArmor 1.2 (formerly known as MailArmor) is a Java-based server-side spam filtering application that works with POP and IMAP accounts to delete unwanted messages. Version 1.1.2 improves message download speed and message checking, tracks Blacklists locally for better performance, includes better logging, and other enhancements, including automatic use of OSIRUSOFT's blacklists (in addition to ORDB's). It is free for a single, personal email account and $15 for a single machine license. [Classic, OSX]
