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Last Answered:
Jun 21 2008 0:31 AM GMT
by Wrobinson
The front-end server will locate the user in AD and proxy the session for the user if they are in a different site. This may result in a questionable user experience as a result of traversing the WAN internally. If the Exchange Server hosting the user mailbox has its own front-end servers and a direct connection to the Internet, using regional URLs may be more desirable and efficient. This gets tricker in Exchange Server 2007, so you may want to start thinking about these kinds of things now if you are considering upgrading down the road.