Book Image

Linux Email

Book Image

Linux Email

Overview of this book

Many businesses want to run their email servers on Linux for greater control and flexibility of corporate communications, but getting started can be complicated. The attractiveness of a free-to-use and robust email service running on Linux can be undermined by the apparent technical challenges involved. Some of the complexity arises from the fact that an email server consists of several components that must be installed and configured separately, then integrated together. This book gives you just what you need to know to set up and maintain an email server. Unlike other approaches that deal with one component at a time, this book delivers a step-by-step approach across all the server components, leaving you with a complete working email server for your small business network. Starting with a discussion on why you should even consider hosting your own email server, the book covers setting up the mail server. We then move on to look at providing web access, so that users can access their email out of the office. After this we look at the features you'll want to add to improve email productivity: virus protection, spam detection, and automatic email processing. Finally we look at an essential maintenance task: backups. Written by professional Linux administrators, the book is aimed at technically confident users and new and part-time system administrators. The emphasis is on simple, practical and reliable guidance. Based entirely on free, Open Source software, this book will show you how to set up and manage your email server easily.
Table of Contents (15 chapters)
Linux E-mail
Credits
About the Authors
About the Reviewers
Preface

Editing the config files


After installation of the software, two configuration files need to be edited. The first file, /etc/clamd.conf, is for the actual virus scanning software. Most of the important configuration options for this file are discussed in the following sections. The second configuration file, /etc/freshclam.conf, is covered later in this chapter. This is where we add the configuration options for the automatic virus database updates.

clamd

You have to edit the configuration file in order to use the daemon, otherwise clamd won't run.

$ clamd
ERROR: Please edit the example config file /etc/clamd.conf.

This shows the location of the default configuration file. The format and options of this file are fully described in the clamd.conf(5) manual. The config file is well commented and configuration should be straightforward.

Examining the sample config file

The sample config file that is provided is very well documented with comments at every significant configuration value. Here...