Microsoft Exchange Server 2003 Transport And Routing Guide

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Microsoft Exchange Server 2003 Transport and Routing Guide

 
 
Microsoft Corporation
Published: December 12, 2006
Author: Exchange Server Documentation Team
 
 
 
 
 
 
 

Abstract

This guide explains how transport and routing works in Microsoft® Exchange Server 2003, and how you can configure Exchange to enable internal and external mail flow.
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Contents


Exchange Server Transport and Routing Guide 15

Part One 15

Understanding Routing Components 16
Types of Routing Components 16
Understanding Routing Groups 17
Understanding Connectors 18
Understanding Link State Information 18

Understanding SMTP and Exchange Server 2003 21
How Exchange Server Extends SMTP Functionality 22Receiving Internet Mail 23
Sending Internet Mail 24

Understanding the SMTP Virtual Server 25
Misconceptions about Multiple SMTP Virtual Servers 25
Inbound Mail Settings on the SMTP Virtual Server 26
Outbound Mail Settings on the SMTP Virtual Server 26

Setting Relay Restrictions 27
Configuring Default Relay Restrictions 28

Understanding SMTP Connectors 29
Functions of an SMTPConnector 31
Uses for an SMTP Connector 32

Transport Dependencies for Exchange Server 2003 34
Internet Information Services 35
Active Directory 36
Domain Name System (DNS) 37
Recipient Policies 40
Recipient Update Service 41
Directory Service to Metabase Service 41

Part Two 42

Verifying DNS Design and Configuration 43
Configuring DNS for Inbound Mail 43
Configuring DNS forOutbound Mail 44
For More Information 44

How to Verify that MX Records Do Not Point to the FQDN of an Exchange Server 45
Before You Begin 45
Procedure 45

How to Verify that MX Records Do Not Point to an Internal Domain 46
Before You Begin 46
Procedure 46

How to Verify that Exchange Servers Can Resolve Internal DNS Names 47
Before You Begin 47
Procedure 47

How to Use Nslookupto Verify MX record configuration 48
Before You Begin 49
Procedure 49
Example 49

How to Use Telnet to Ensure Internet Accessibility 50
Before You Begin 50
Procedure 50

How to Configure DNS Settings on the Exchange Server 51
Before You Begin 51
Procedure 51

How to Configure Settings on the DNS Server 52
Before You Begin 52
Procedure 52

How to Configure External DNSServers on an Outbound SMTP Virtual Server 53
Before You Begin 53
Procedure 53

How to Use the DNS Resolver to Verify DNS Configuration 55
Before You Begin 55
Procedure 56
Example 56

How to Use Nslookup to Verify DNS Configuration 57
Before You Begin 57
Procedure 57
Example 58

Configuring a Routing Topology 59
General Planning Considerations 59

Common Routing Topologies60
Centralized Messaging Topology 61
Distributed Messaging Topology 61

Defining Routing Groups 63
Defining Routing Group Connectors and Bridgehead Servers 65
Connecting Routing Groups 67

How to Configure the Options for a Routing Group Connector 69
Before You Begin 69
Procedure 69

How to Specify a Remote Bridgehead Server for a Routing Group Connector 70
Before You Begin 70Procedure 70

Understanding Connector Scope and Restrictions 72
Using Connector Scope to Restrict Usage 73
Using Delivery Restrictions to Restrict Usage 73

How to Enable the Registry Keys for Delivery Restrictions 75
Before You Begin 75
Procedure 76

Designating a Routing Group Master 76

How to Change Which Server Is the Routing Group Master 78
Before You Begin 78
Procedure78

Advanced Routing Configuration 78
Using Connectors for Load Balancing and Failover 78
Suppressing Link State Traffic for Connectors 80

How to Create a Routing Group 81
Before You Begin 82
Procedure 82

Deployment Scenarios for Internet Connectivity 83

Common Deployment Scenarios 84

Using a Single Exchange Server in Its Default Configuration 86
Basic Configuration 86...