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


There are different ways of running SpamAssassin. The method chosen depends on the requirements of the site. Each method has different performance implications and offers different levels of flexibility.

For low-volume sites, Procmail is an ideal choice. It can be used to filter email site-wide, or can be used selectively for users with local accounts. For higher performance, SpamAssassin can be integrated into the MTA.

If desired, email can be rejected upon delivery. This warns a legitimate sender that their email has been filtered. However, if the spam email uses a fake identity or a stolen identity (as is usually the case) the message is bounced back to an innocent user and so this method should be avoided.