Spam is a formidable, costly, and pervasive problem. And now that it is being used to commit fraud and identity theft, every mail administrator needs to understand how to successfully monitor and fight spam.

Although they are some of the most powerful anti-spamming tools available, open-source sendmail Milters have lacked clear documentation…until now. sendmail Milters: A Guide for Fighting Spam is the first in-depth guide to writing powerful Milters to block even the cleverest spammers.

Inside this definitive new reference, readers will find:
An exhaustive description of the Milter interface

Gruesome details on what spam is, its harmful effects, and the diverse techniques used by spammers

A step-by-step guide to luring spammers using a honeypot network

Ways to decode the common encoding methods used in spam e-mail

A reference on the Milter libray and how to use it

Techniques for expanding software to deal with future spamming methods

An accompanying Web site offers downloadable code that can be used as is or modified.

Whether you administer a sendmail, MS Exchange, procmail or other mail system, this book will give you the knowledge you need to combat current or future spamming techniques.

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