Book description
Set up, maintain, and secure a small office email server
- Covers all the information you need to easily set up your own Linux email server
- Learn how to provide web access to email, virus and spam protection, and more
- Thoroughly covers open source tools like PostFix, Courier, SpamAssassin, and ProcMail
- A step-by-step approach where the reader is taken through examples with ample screenshots and clear explanations to facilitate learning
In Detail
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
-
Linux E-mail
- Table of Contents
- Linux E-mail
- Credits
- About the Authors
- About the Reviewers
- Preface
- 1. Linux and E-mail Basics
-
2. Setting up Postfix
- Introduction to Postfix
- Installation and basic configuration
- Stopping spam and other unwanted messages
- Virtual alias domains and local aliases
- Troubleshooting Postfix problems
- Summary
-
3. Incoming Mail with POP and IMAP
- Choosing between POP and IMAP
- Downloading and installing Courier-IMAP
- Using POP3
- Using IMAP
- Summary
- 4. Providing Webmail Access
-
5. Securing Your Installation
- Configuring Postfix network maps
- Cyrus SASL
- Testing Cyrus SASL authentication
- Configuring Postfix SMTP AUTH
- Testing SMTP AUTH
- Enabling relaying for authenticated clients
- Securing plaintext mechanisms
- Dictionary attacks
- Summary
-
6. Getting Started with Procmail
- Introduction to Procmail
- How can a filtering system help me?
- Downloading and installing Procmail
- Basic operations
- Analyzing a simple rule
- Creating and testing a rule
- Configuration debugging
- Understanding e-mail structure
- Example rule sets
- System-wide rules
- Summary
- 7. Advanced Procmail
-
8. Busting Spam with SpamAssassin
- Why filter e-mail
- Introduction to SpamAssassin
- Downloading and installing SpamAssassin
- Using SpamAssassin
- Configuring e-mail clients
- Customizing SpamAssassin
- Other SpamAssassin features
- Summary
- 9. Antivirus Protection
- 10. Backing Up Your System
- Index
Product information
- Title: Linux E-mail
- Author(s):
- Release date: November 2009
- Publisher(s): Packt Publishing
- ISBN: 9781847198648
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