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

DCC


Although the correct term is 'The Distributed Checksum Clearinghouse', it is referred to as DCC here to enhance readability. DCC is the most effective network service, but also the most complex.

DCC is written in C. To build from source (binary packages are rare) a C compiler is required. DCC uses UDP port 6277 to communicate with servers, so this should be enabled through any firewall in use.

Installing DCC

DCC is available in RPM format for Mandrake, but for no other RPM-based distribution. Use the rpm -i command to install it. DCC is available in Gentoo Linux and Debian Linux; use emerge net-mail/dcc under Gentoo, and apt-get dcc-client in Debian. For other distributions and versions of UNIX, DCC should be installed from source.

The source for DCC can be downloaded from http://www.dcc-servers.net/dcc/.

The source is packaged as a tar file. Unpack this and then run the configure script. This script will automatically detect any required software libraries or inform if they are missing...