Fight Spam on Your Terms with Custom Weight Lists At A Glance: Custom Weight Lists The Intelligent Message Filter How to filter messages to stop spam How to search text appropriately Spam, as we all know, is a huge problem. It clogs up your servers, aggravates your users, sucks up your bandwidth, and communicates unwanted and often inappropriate messages. Can anything be done to stop it? Well, if you're running Microsoft® Exchange Server 2003 you may have noticed that new features and functionality released last October in Service Pack 2 (SP2) significantly improved its ability to withstand different vectors of spam attacks. With multiple layers of anti-spam defense, Exchange Server 2003 can provide strong protection against unwanted messages. One of the most important elements in the Exchange anti-spam framework is the Intelligent Message Filter (IMF), which enables content filtering during the last stage of server anti-spam processing. Inside IMF, a little-known module called...