With appropriate configuration of Send and Receive Connectors, DNS
configuration, accepted domains, and SMTP Connectors, the Edge Transport server can be used as a
smart host for the Exchange 2000/2003 messaging environment. However, to take advantage of all the
anti - spam and anti - virus features of the Edge Transport server, the Edge Transport server should be
subscribed to the Exchange organization. To achieve this in an existing Exchange 2000/2003
environment, at least one Exchange Server 2007 Hub Transport server role should deployed into
the existing Exchange organization to complete the edge subscription process.
The Edge Transport servers in the perimeter network and the Hub Transport servers in the Exchange
organization must be able to locate each other by using host name resolution. You must specify the
appropriate DNS suffix for the Edge Transport server prior to its installation.
Chapter 9: Confi guring the Edge Transport Server Role
245
Preparing the Edge Transport Server
After you install the Microsoft Exchange Server 2007 Edge Transport server role, if you do not use
edge subscription and EdgeSync to automate your configuration, then you must configure the Send
and Receive Connectors. For complete mail flow, the Edge Transport server must have connectors that
support mail flow to and from the Internet, and to and from the organization.
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