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SpamAssassin: A practical guide to integration and configuration

You're reading from  SpamAssassin: A practical guide to integration and configuration

Product type Book
Published in Sep 2004
Publisher Packt
ISBN-13 9781904811121
Pages 240 pages
Edition 1st Edition
Languages

Table of Contents (24) Chapters

SpamAssassin
Credits
About the Author
About the Reviewers
1. Introduction
1. Introducing Spam 2. Spam and Anti-Spam Techniques 3. Open Relays 4. Protecting Email Addresses 5. Detecting Spam 6. Installing SpamAssassin 7. Configuration Files 8. Using SpamAssassin 9. Bayesian Filtering 10. Look and Feel 11. Network Tests 12. Rules 13. Improving Filtering 14. Performance 15. Housekeeping and Reporting 16. Building an Anti-Spam Gateway 17. Email Clients 18. Choosing Other Spam Tools Glossary

Summary


This chapter discussed the building blocks of SpamAssassin—rules. SpamAssassin allows the user to define rules to respond to the spam a site is currently receiving. There are a variety of rule types for processing different parts of the email.

User-defined rules are based on Perl regular expressions. Rule scoring is an important part of SpamAssassin filtering techniques.

Using a corpus and calculating the effectiveness of rules can assist in re-scoring rules to improve filtering. Several custom rulesets can be added to a site, and these should be frequently updated.

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