Bes 5.2 and Exchange 2003 / 2010 co-existence

We have a BES 5.2 server and an exchange 2003 server.

Recently installed a Exchange 2010 server but need to be able to run in co-existence for a while, and let BES users still have access to Blackberry's but be on both servers.

I was thinking about doing this:

Create new BES account i.e.. bes2010 on the exchange 2010 server..assign it the correct permissions etc etc, then install the correct MAPI CDO on the BES server, and change the AD account that the BES server uses to the bes2010 account that I setup on the exchange 2010 server.

Will that allow users to be on both servers and still have access to the BES server?
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themightydudeAsked:
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AkhaterCommented:
what is the problem you are facing in coexistance ?

usually the coexistance i just a matter of assigning the correct permissions to the BESAdmin on the exchange 2010 server, I never had to create another BES admin nor another BES server
Glen KnightCommented:
Agree with Akhater, there is no reason to create another account.  BES will sort out itself which exchange server to use you just need to make sure that the correct permissions are in place.
themightydudeAuthor Commented:
No problem yet, was just trying to think about the best way to do this.

So if I just setup the permissions for the BESAdmin account on the exchange 2010 server it should work?

Do I need to transfer the BESAdmin account to the Exchange 2010 server though? I was thinking that by creating a new besadmin account on the exchange 2010 server, if it didn't work, I could just revert back to the besadmin account on the exchange 2003 server.
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AkhaterCommented:
there is no need to create a new BESAdmin just assign the permission on exchange 2010 to the current BES admin you have.

it will work no matter if the mailbox of the BESAdmin is on 2003 or 2010 you can move the mailbox after migration if you prefer

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Glen KnightCommented:
>>So if I just setup the permissions for the BESAdmin account on the exchange 2010 server it should work?

Correct.

themightydudeAuthor Commented:
Great thanks guys.

Going to work on this tonight while everyone is asleep. Will try to post back if it went as planned.

Again thanks for the advice.
AmitIT ArchitectCommented:
demazter

Will try best

Thanks
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