Mailbox move from Exchange 2003 to Exchange 2010

I have built a new SBS2011 server and so now have Exchange 2010. I want to migrate all the users with their mailboxes from the old SBS2003 server running Exchange 2003 to the new server. How can this be done please?
ClintonKAsked:
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Alan HardistyCo-OwnerCommented:
Did you build the new SBS server in migration mode, or just build the server separately from the SBS 2003 server?

If you did it separately, I would wipe it and start again following one of the many SBS 2003 to SBS 2011 migration articles such as this one:

http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Server/SBS_Small_Business_Server/A_4234-Migrate-Small-Business-Server-2003-to-Small-Business-Server-2011.html

Alan
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ClintonKAuthor Commented:
The new SBS 2011 was built completely separately and is running in parallel (without them knowing about each other on the network).
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Alan HardistyCo-OwnerCommented:
Okay - then you can't move the mailboxes between servers.  Your only option is to export the mailboxes from the old server to .PST files and then import them into the new server via Outlook once configured to the new server?

Why didn't you migrate out of curiosity?

Alan
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ClintonKAuthor Commented:
I thought migration would be too complicated but there's no reason why I can't still do it as the live server is still live and I can soon zap the new server and start again. The servers I have lined up do not have a huge number of users - the biggest one has 20 so exporting to PST and then importing back in is the way I've done it in the past. I'm just reading through the article you posted just now and it does imply that changes are made to the source system which makes me nervous. I like to be able to easily switch back to the old server should the new build go horribly wrong. That way I can walk away and leave the client with a working system for Monday morning and my stress levels are lower.
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Alan HardistyCo-OwnerCommented:
As long as you run a full backup of the SBS 2003 server and take a System State backup separately too, then you can always blow away the SBS 2011 server and roll back to a pre-migration state should you need to.

I've done dozens of migrations and always used Demazter's article and never had a problem.  The key is to make sure you have updated the old server as much as you can, make sure that AD is happy and there are no issues reported and then it should be plain sailing.

If you have any questions, please shout.

Alan
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ClintonKAuthor Commented:
Thanks. I'll give it a try with Demazter's article.
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Alan HardistyCo-OwnerCommented:
just take it slowly, finish one step at a time and don't be tempted to jump ahead if you get stuck.


If you do get stuck, there are plenty of good Experts on EE who can help you - just make sure you post any problems you may have in the SBS zone and you should get some great help.

Thanks for the points and good luck with the migration.

Alan
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