O'Reilly logo

SpamAssassin by Alistair McDonald

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 11. Network Tests

SpamAssassin on its own can detect a high proportion of spam. By using network tests, spam detection can be further improved. SpamAssassin includes support for Realtime BlockLists (RBLs) and Spam URI Realtime BlockLists (SURBLs). All these external services are easy to integrate into SpamAssassin.

The effectiveness of network tests varies from a 60% detection rate upwards. By using them in conjunction with SpamAssassin, spam detection rates are much higher, typically over 95%! However, network tests slow down spam detection. This means that the SpamAssassin processes will take longer to complete and will increase the memory usage of the email server.

This chapter describes the support SpamAssassin has for RBLs and SURBLs, ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required