In Slamming Spam, two spam fighters show you how to fight backand win. Unlike most spam books, this one is written specifically for in-the-trenches system administrators: professionals who need hands-on solutions for detecting, managing, and deterring spam in Unix/Linux and/or Microsoft Windows environments. The authors offer deep, administrator-focused coverage of the most valuable open-source tools for reducing spam's impact in the enterpriseespecially SpamAssassin. Drawing on their extensive experience in developing and implementing anti-spam tools, the authors present expert insights into every leading approach to fighting spam, including Bayesian filtering, distributed checksum filtering, and email client filtering.