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Migrating from Office 365 to on-premise Exchange 2010 server.

Posted on 2013-05-20
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Last Modified: 2013-06-13
We are looking to move from our Office 365 Exchange services to an on-premise Exchange 2010 server. Are there tools or methods for doing this that does not involve manually exporting a PST file and then importing this file on the new server? We have over 50 users we need to migrate so manually exporting each PST would take a huge amount of time. What are my options for moving back to an on-premise server?

Thank you
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Question by:OAC Technology
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by:Simon Butler (Sembee)
ID: 39182069
You should be able to deploy an on premise server that is part of your Office365 org. That will be a tempoary server to act as the bridge.
Then build your real server.

At that point you can then do a move mailbox on to the new server out of Office365.
Plenty of documentation on the co-existance.

Simon.
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by:OAC Technology
ID: 39182363
So I'll need to have a second server as an intermediate server? There's no way to move the mailboxes directly from the 365 cloud to their existing Exchange 2010 server?
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Simon Butler (Sembee) earned 500 total points
ID: 39186984
You didn't mention that there was an existing server.
Has the internal domain and Exchange org been linked to Office365, or are they completely independent?
Your best option though would be to raise a support call through the online portal. Microsoft support will then help you through it. I had a particularly nasty migration off Office365 to on-prm just before Christmas and it took Microsoft four weeks to resolve the issues for me - I couldn't have done it myself.

Simon.
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