Datasheet

18 Chapter 1
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Preparing for the Exchange Installation
Antivirus and antispam controls
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: The Edge Transport role, one of the new Exchange
Server 2007 server roles, is responsible for preventing spam messages from entering
your Exchange organization. The intelligent message filter (IMF) has been removed
from the Exchange servers that host mailboxes and public folders or that handle client
access requests and moved into the Edge Transport role, which is designed to operate
in a demilitarized zone (DMZ) network if desired. Additionally, Sybari’s Antigen anti-
virus product is now a Microsoft product known as Forefront Security for Exchange
Server. Forefront is a complete Exchange-aware antivirus application that can be used
on the Edge Transport server as a network edge scanner and also on the Hub Transport
server to scan messages traversing your internal network. You’ll examine antivirus and
antispam issues in more detail in Chapter 7.
What’s No Longer Supported in
Exchange Server 2007?
In any new release of a software product, discontinued or de-emphasized features are inevi-
table. Such is the case with Exchange Server 2007, although some of these items might sur-
prise experienced Exchange administrators. The items that follow in no way represent every
change that has occurred in Exchange Server 2007, but they do represent some of the most
interesting ones.
Features That Have Been Removed or Replaced
The following key features and functionality have been removed from Exchange Server 2007:
Routing groups
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: Link-state routing is no longer used in Exchange Server 2007 and has
been replaced by Active Directory site–based routing. This places further importance
on the proper planning and design of the Active Directory forest into which Exchange
Server 2007 will be installed, but it reduces the overall amount of planning and admin-
istration required to maintain an Exchange organization. Now all routing (both AD and
Exchange) is controlled and configured from a single location—the Active Directory
Sites and Services console—thus providing consistent, predictable results that can be
controlled as your physical network dictates. You’ll examine Active Directory more
as it relates to the installation of Exchange Server 2007 in Chapter 2.
Administrative groups
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: Administrative groups, which were previously used in Exchange
Server to control administrative access to groups of servers, have been replaced by the
Exchange Server 2007 split permissions model that emphasizes using universal security
groups. We’ll cover administrative roles more in Chapter 3.