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New Exngchange 2010 Install on new server  coexistence with 2003 until move complete

Posted on 2011-02-16
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Last Modified: 2012-05-11
Hey All,

I have am doing a new Exchange 2010 install that will be  coexisting with the 2003 exchage for a short time, I am getting this warning durning the pre-Install check and have not seen it before and would like to know what I need to do prier to the install so not to have this warning.


SMTP instance 'CN=1,CN=SMTP,CN=Protocols,CN=SCSHSERVER,CN=Servers,CN=First Administrative Group,CN=Administrative Groups,CN=SCSH,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=SCSH,DC=local' is configured to route all messages via smart host 'smtp.comcast.net'. Remove this option if this SMTP instance is set as the source or target transport server of a routing group connector between an Exchange Server 2010 routing group and an Exchange Server 2003 Server routing group.
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Question by:CyberxPA
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tigermatt earned 500 total points
ID: 34910670

Basically, what that warning is telling you is that the smart host (SMTP server) for delivery of all email to external recipients is set on your Exchange 2003 SMTP Virtual Server and not in a send connector.

This will cause issues with your Exchange 2010 co-existence, and so the setting needs to be removed.

In Exchange System Manager, go to the path listed in that error (First Admin Group / Servers / SCSHSERVER / Protocols / SMTP / Default SMTP Virtual Server). Go to the fourth tab - Delivery - then click Advanced.

Clear the Smart Host box.

You then need to make a send connector in Exchange 2003 so that email is still sent out via the Smart Host, just by a different method for now. See here for details on doing that: http://www.amset.info/exchange/smtp-connector.asp.

Of course, this is only temporary while Exchange 2003 is still in the equation, but you'll need this for external delivery of email until the 2010 environment takes over that role.

-Matt
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Author Comment

by:CyberxPA
ID: 34910835
Thank you Matt, That fixed it right up.
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by:tigermatt
ID: 34910913

Great stuff. Thanks for letting me know!
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