Preface
Chapter 1. Understanding E-mail and the DNS
1.1 The Domain Name System (DNS)
1.1.1 Fully Qualified Domain Names
1.1.2 The Role of DNS Servers
1.2 How the DNS Routes E-mail
1.2.1 MX and A Records
1.2.2 Establishing MX and A Records for Your Host
1.2.3 Consequences of Improper Configuration of DNS Records
Chapter 2. Setting Up Your E-mail Network
2.1 Safety First: Setting up a Secure Mail Server
2.1.1 System Security
2.1.2 Mail Account Security
2.2 Other Issues to Consider
2.3 Addressing and Routing with Post.Office
2.3.1 Account Addresses
2.3.2 Local Mail Domains
2.3.3 Channel Aliases
2.3.4 Mail Routing Table
2.3.5 MX Records in the DNS
2.4 Sample Setups
2.4.1 The Basic Setup
2.4.2 Hostname Hiding
2.4.3 Behind a Firewall
2.4.4 Intermittently Connected Site
Chapter 3. Installing Post.Office on Windows NT
3.1 System Requirements
3.2 Pre-Installation Planning
3.3 Installing Post.Office
3.3.1 The Installation Process
3.3.2 Checking to See if Installation Worked
3.3.3 Common Installation Mishaps
3.4 Installing a New License Number
3.5 De-installation
Chapter 4. Installing Post.Office on UNIX
4.1 System Requirements
4.2 Pre-Installation Planning
4.2.1 Establish What Mail System You Already Have
4.2.2 Your DNS Domain
4.2.3 Setup User and Group for Post.Office
4.2.4 Locations of Programs and Working Directories
4.2.5 Changes to Existing Files and Services
4.2.6 The Role of the Postmaster
4.2.7 Impact of Migration for Mail System Users
4.3 Installing Post.Office
4.3.1 The Installation Process
4.3.2 Finishing Up
4.3.3 Common Installation Mishaps
4.4 Installing a New License Number
4.5 De-installation
Chapter 5. What Happens Next
5.1 Understanding Accounts
5.1.1 The Postmaster Account
5.1.2 Personal Accounts
5.2 Where to Go Now
Index