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Migrating Exchange 2003 to Exchange 2010

Posted on 2011-03-13
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After you are done migrating Exchange 2003 Mailboxes to Exchange 2010, so you have to point the Outlook clients to the new server that the Exchange 2010 database is on?
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Question by:cliffordgormley
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Glen Knight earned 333 total points
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If the 2 servers are part of the same exchange organisation then no, outlook will automatically update itself if both servers are online for a period of time.

See my guide here, it's for SBS but the process is identical: http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/A_2881-Migrate-Small-Business-Server-2003-to-Exchange-2010-and-Windows-2008-R2.html
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by:AustinComputerLabs
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Yes, open the client Outlook
open the Exchange account properties
replace the old server name with the new one
click check name and when it resolves you are good.
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by:Glen Knight
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You don't need to do this, it should happen automatically!
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by:cliffordgormley
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Thank  you dmazter,
I am actually using your link to do the migration, and I love its attention to detail.

I ran into a few issues where I had to edit the Burlap flags in the Registry to D4 and D2 to force the Exchange 2003 Server/SBS/DC to force  replication to the Exchange 2010/DC.  Until i did that, the SYSVOL share and the GPOs did not get replicated over to the new Exchange 2010 Server/DC.

I also had to increase the limit on mailbox sizes in the Exchange 2010 server to accept some of the legacy mailboxes.
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