Chapter 10. Microsoft Exchange

In this chapter, we cover the Microsoft Exchange Server 2003 mail server’s functionality as it relates to stopping spam. This chapter is not meant to be a thorough treatment of Exchange; it only covers those pieces that help administrators use Exchange in their fight against spam. For pointers to Microsoft Exchange resources, please see Appendix G, “References.”

Microsoft has released an Exchange plugin called Intelligent Message Filter (IMF), which enables a high level of spam fighting capability. Specifically, IMF appears to use a Bayesian-style classifier that uses the characteristics of spam and non-spam messages to classify messages that go through the Exchange server. Exchange then uses IMF and the statistical ...

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