Book Image

SpamAssassin: A practical guide to integration and configuration

Book Image

SpamAssassin: A practical guide to integration and configuration

Overview of this book

As a busy administrator, you know Spam is a major distraction in todays network. The effects range from inappropriate content arriving in the mailboxes up to contact email addresses placed on a website being deluged with unsolicited mail, causing valid enquiries and sales leads to be lost and wasting employee time. The perception of the problem of spam is as big as the reality. In response to the growing problem of spam, a number of free and commercial applications and services have been developed to help network administrators and email users combat spam. Its up to you to choose and then get the most out of an antispam solution. Free to use, flexible, and effective, SpamAssassin has become the most popular open source antispam application. Its unique combination of power and flexibility make it the right choice. This book will now help you set up and optimize SpamAssassin for your network.
Table of Contents (24 chapters)
SpamAssassin
Credits
About the Author
About the Reviewers
Introduction
Glossary

Summary


Bottlenecks can occur in a number of areas: memory, disk I/O, CPU and Network I/O. Memory (or RAM) is the main bottleneck when using SpamAssassin. Using SpamAssassin as a daemon improves performance.

Filtering out messages before SpamAssassin processes them reduces the load on the machine. This can be achieved in a number of ways.

SpamAssassin can run on separate machines and be accessed from the MTA. SQL can help to keep user settings in a single location even when multiple machines are in use. SQL is also used to increase performance.