Qmail Quickstarter: Install, Set Up and Run your own Email Server Table of Contents

Table of Contents

• Preface

• Chapter 1: Basic Qmail
• The Minimum Qmail System
• Compiling and Installing
• Preparing the System
• Compiling and Installing the Necessary Binaries
• Creating the Basic Configuration Files
• Creating the Necessary Minimum Account Aliases
• Default Mail Delivery
• Basic Configuration
• Simple Execution
• qmail-start
• qmail-smtpd
• Administrative Conveniences
• About Patches
• ucspi-tcp and daemontools
• Installation
• Using tcpserver
• Using svscan
• Logging
• The Overall Structure of Qmail
• Summary

• Chapter 2: Getting Email into the Queue
• qmail-queue and the Qmail Queue
• The qmail-inject and sendmail Interfaces
• qmail-smtpd and the QMAILQUEUE Patch
• Accepting or Rejecting Email
• RELAYCLIENT and Authentication
• tcprules
• POP-before-SMTP
• SMTP-AUTH
• The QMAILQUEUE Patch
• Other Mail Protocols
• Quick Mail Transfer Protocol (QMTP)
• Old-Fashioned Mail Injection Protocol (OFMIP)
• Summary

• Chapter 3: Getting Email Out of the Queue
• qmail-send and the Qmail Queue
• Delivering Email Locally
• The Default
• .qmail Files
• Forwards
• Maildirs and mboxes
• Pipes and Programs
• Supporting .forward Files
• Users
• The virtualdomains File
• Defined Users: The users/assign File
• Aliases
• Extensions
• Delivering Email Remotely
• How It Normally Works
• Static Routes
• Authentication
• Summary

• Chapter 4: Storing and Retrieving Email
• Popular Storage Formats
• Reliability
• Speed
• Reading
• Marking
• Deleting
• Delivery
• Searching
• On-Disk Efficiency
• The POP3 and IMAP Protocols
• Protocol and Server Selection
• qmail-pop3d Server Setup
• The Checkpassword Interface
• Installing the checkpassword Program
• Running with tcpserver
• Webmail
• Summary

• Chapter 5: Virtualization
• Generic Virtualization Framework
• Power of the virtualdomains File
• Basic Virtual Domains
• The Path of an Email
• Non-Virtual Non-System Users
• User-Management Problem in Assisted Virtual Domains
• Popular Solutions: vpopmail and VMailMgr
• Consequences for Other Services
• Good Reasons to Use Multiple Installations
• How to Set Up Multiple Qmail Installations
• Hiding Multiple Queues from the User
• Summary

• Chapter 6: Filtering
• Basic Filtering Architecture
• Sending Mail Without a Queue
• Blocking Viruses
• Heavyweight Filtering
• Lightweight Filtering
• Stopping Spam from Getting In
• Sender Validation
• SPF
• DomainKeys
• Identifying Spam
• Lightweight
• Heavyweight
• Quarantines and Challenges
• Mistakes
• Stopping Spam from Getting Out
• Sender Restrictions
• Bounce-Back Spam
• Recipient Validation
• Recipient Validation is Insufficient
• Summary

• Chapter 7: Advanced Features
• SSL Encryption
• Patch vs. Wrapper
• When Receiving Email
• When Sending Email
• Mailing Lists
• Lightweight vs. Heavyweight
• Speed vs. Size
• Member Management
• Efficiency under Load
• Variable Envelope Return Path
• Integration with Qmail
• Web Interface
• Summary

• Chapter 8: Administration, Optimization, and Monitoring
• The Log Files
• The Basic qmail-smtpd Log
• Expanding the qmail-smtpd Log
• The Basic qmail-send Log
• Basic Analysis
• qmailanalog
• Identifying Problems
• Making It Faster
• Calculating Your Limits
• Finding Bottlenecks
• Concurrency
• Resource Starvation
• DNS
• Filesystem
• Silly Qmail Syndrome
• Summary

• Index