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BES 4.0 Server Migration to new Domain

I'm in the process of migrating to a new domain and I'm at the tail end of it with the only servers left in the old domain being Exchange 5.5 Servers and a BES 4.0 Server.

I ran a test joining the Exchange Servers to the new domain and everything worked fine after resetting the logon account for the Exchange Services.  During this test, the BES server was left in the old domain running a 2 way trust between the 2.  BES did not function under this condition so the Exchange Servers were re-joined to the old domain.  

Knowing that I can get Exchange 5.5 working in the new domain; I need to know what process and/or procedures I should follow to migrate/move the BES server to the new domain after the Exchange Servers have been moved.

The source domain where BES and Exchange currently reside is a Win2k domain.  The destination domain is running Win2k3.  ADMT has been used to migrate all user and service (BESAdmin) accounts to the new domain.  

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BradburyLLCAuthor Commented:
I'll be performing the move this weekend and will follow up with the results.  If what you provided me is a conclusive resolution, I will award you the points.    thank you
BradburyLLCAuthor Commented:
I've completed this task.  There was more to the process than just migrating the BESAdmin account.  I figured out the correct process which involved exporting the RIM registry key from the user account that was used to perform the BES install and import that key into the new profile that was created when the machine was joined to the domain.

Once that was completed I had to re-map the mapi profile to resolve in exchange and everything worked just fine.
PAQed with points refunded (500)

EE Admin
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