09-20-2011, 02:45 PM
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| | Re: Upgrading to Exchange 2010 from 2003
Thank you very much for this information.
I couldn't see anything in the article, but do you know if this works for a phased upgrade (we plan on moving 10-20 people to Exchange 2010, test, and then gradually move the other users over a few days/weeks)? Will the users who are still on Exchange 2003 still be able to get mail on their devices after some of these steps have been performed?
Or, since we're doing it that way, should we build a new BES and simply move the user from one BES to the new one as their mailboxes are moved in Exchange?