Book description
qmail has quietly become one of the most widely used applications on the Internet today. It's powerful enough to handle mail for systems with millions of users--Like Yahoo! Mail and Hotmail, while remaining compact and manageable enough for the smallest Unix- and Linux-based PC systems. Its component design makes it easy to extend and customize while keeping its key functions secure, so it's no wonder that adoption of qmail continues at a rapid pace.The downside? Apparently none. Except that qmail's unique design can be disorienting to those familiar with other popular MTAs (Mail Transfer Agents). If you're coming from sendmail, for instance, you might have trouble recasting your problems and solutions in qmail terms. qmail first helps you establish a "qmail frame of mind," then explores the installation, configuration, administration, and extension of this powerful MTA. Whether you're installing from scratch or managing mailing lists with thousands of users, qmail provides detailed information about how to make qmail do precisely what you wantqmail concentrates on common tasks like moving a sendmail setup to qmail, or setting up a "POP toaster," a system that provides mail service to a large number of users on other computers sending and retrieving mail remotely. The book also fills crucial gaps in existing documentation, detailing exactly what the core qmail software does.Topics covered include:
- Installation and configuration, including patching qmail
- Moving from sendmail to qmail
- Handling locally and remotely originated messages
- Managing virtual domains
- Logging qmail activity
- Tuning qmail performance
- Running multiple copies of qmail on the same computer
- Mailing list setup and management
- Integrating the qmail MTA with POP and IMAP delivery
- Filtering out spam and viruses
Publisher resources
Table of contents
- Preface
-
I. Introduction to Qmail
- 1. Internet Email
- 2. How Qmail Works
-
3. Installing Qmail
- 3.1. Where to Find Qmail
- 3.2. Creating the Users and Groups
-
3.3. Configuring and Making the Software
- 3.3.1. conf-break
- 3.3.2. conf-cc
- 3.3.3. conf-groups
- 3.3.4. conf-ld
- 3.3.5. conf-patrn
- 3.3.6. conf-qmail
- 3.3.7. conf-spawn
- 3.3.8. conf-split
- 3.3.9. conf-users
- 3.3.10. Build Using make
- 3.3.11. If the Build Fails
- 3.3.12. Building the Other Packages
- 3.3.13. Installing Qmail
- 3.3.14. Installing Other Programs
- 3.4. Patching Qmail
-
4. Getting Comfortable with Qmail
- 4.1. Mailboxes, Local Delivery, and Logging
- 4.2. An Excursion into Daemon Management
- 4.3. Setting Up the Qmail Configuration Files
- 4.4. Starting and Stopping Qmail
- 4.5. Incoming Mail
- 4.6. Procmail and Qmail
- 4.7. Creating Addresses and Mailboxes
- 4.8. Reading Your Mail
- 4.9. Configuring Qmail’s Control Files
- 4.10. Using ~alias
- 4.11. fastforward and /etc/aliases
- 5. Moving from Sendmail to Qmail
- 6. Handling Locally Generated Mail
- 7. Accepting Mail from Other Hosts
- 8. Delivering and Routing Local Mail
- 9. Filtering and Rejecting Spam and Viruses
-
II. Advanced Qmail
- 10. Local Mail Delivery
- 11. Remote Mail Delivery
-
12. Virtual Domains
- 12.1. How Virtual Domains Work
- 12.2. Some Common Virtual Domain Setups
- 12.3. Some Virtual Domain Details
- 13. POP and IMAP Servers and POP Toasters
- 14. Mailing Lists
- 15. The Users Database
- 16. Logging, Analysis, and Tuning
- 17. Many Qmails Make Light Work
-
18. A Compendium of Tips and Tricks
- 18.1. Qmail Won’t Compile
- 18.2. Why Qmail Is Delivering Mail Very Slowly
- 18.3. Stuck Daemons and Deliveries
- 18.4. Mail to Valid Users Is Bouncing or Disappearing
- 18.5. Mail Routing
- 18.6. Local Mail Delivery Tricks
- 18.7. Delivering Mail on Intermittent Connections
- 18.8. Limiting Users’ Mail Access
- 18.9. Adding a Tag to Each Outgoing Message
- 18.10. Logging All Mail
- 18.11. Setting Mail Quotas and Deleting Stale Mail
- 18.12. Backing Up and Restoring Your Mail Queue
- A. A Sample Script
- B. Online Qmail Resources
- Index
- About the Author
- Colophon
- Copyright
Product information
- Title: qmail
- Author(s):
- Release date: March 2004
- Publisher(s): O'Reilly Media, Inc.
- ISBN: 9781565926288
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