Datasheet

Chapter 1

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Designing and Planning Messaging Services

Internal Message Routing

In Exchange 2000 and Exchange 2003 you defined message routing inside an Exchange orga-

nization by using routing groups and routing group connectors. Exchange Server 2007 intro-

duces major changes to internal message routing:

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The message-routing topology and routing decisions are based on the Active Directory site

topology (AD sites and IP site links).

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Routing is configured automatically, so you do not need to configure any routing

group connectors.

Table 1.6 provides an overview of internal message routing in Exchange Server 2007 as it cor-

relates to Exchange 2000/2003.

Using Edge Transport Servers to Ease Administration

A great benefit of using Edge Transport servers for smart-host functionality is when you

use Edge subscription in your Exchange organization. A subscription basically connects the

stand-alone Edge Transport server to your configuration information; thus you will be able to

configure your Edge Transport servers using Exchange Management Console or Exchange

Management Shell.

I have seen companies that had quite a few smart-host servers out there sitting at the Internet

connection points. Whenever there was an SMTP address change or a new address to add,

we needed to configure it at every smart host that routed messages. Guess what happened?

Occasionally some servers were missed, and so sometimes the message resulted in a non-

delivery receipt (NDR) and sometimes not. Figuring out where the problem resides was then

an extremely difficult task.

Now, with the Edge Transport role, we plan to homogenize our entire smart-host server farm

using Exchange Server 2007. That way we can reduce not only the number of servers installed,

but also the administrative effort.

TABLE 1.6 Internal Message Routing in Exchange Server 2007 Compared to

Exchange 2000/2003

Exchange Server 2007 Exchange Server 2000/2003

Hub Transport server Dedicated bridgehead server

Active Directory site Routing group

81461.book Page 28 Wednesday, December 12, 2007 4:49 PM