Two exchange servers on one domain.

By gwhitton ·

We have an SBS 2003 server running exchange. I am trying to setup a new 2010 exchange server and slowly migrate mailboxes across. (So will be using two exchange servers at once for a while)

I have setup the new 2010 exchange server and moved a couple of mailboxes over as a test. The mailboxes that have been moved to the new 2010 server can no longer send or receive emails. The error I receive is:

"There was a SMTP communication problem with the recipient's email server. Please contact your system administrator" and "sorry, relaying denied from your location"

I guess my question is, is there any good documentation around explaining how this scenario should be setup in regards to relay/SMTP conector settings on each server etc?

Any other advice is welcome.


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