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I currently have an Exchange 2010 SP1 server in house, and due to some changes, it looks like i will need Multi Tenant support for a few extra domain names. Looking at the documentation i have found so far, it only mentions multi tenant support when upgrading from 2010 RTM -> SP1, and not what you do if you have already got 2010 SP1 installed.

So, from what i can gather, i have a few options:

  • Install a new Exchange server with Multi Tenant support and migrate DBs over
  • Back everything up and start again
  • Something else...

Any suggestions would be greatly appreciated...


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up vote 0 down vote accepted

You can't add Exchange 2010 in hosting mode to an existing organization. You will need to stand up a new forest and Exchange organization and migrate the user mailboxes.

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Thanks for the info. I was hoping i wouldent need to do that, but i suppose if it has to be done, it has to be done... – TiernanO Feb 3 '11 at 7:24

Do you really need Multi-Tenant suuport or do you only need to add some additional domains to your Accepted Domains? Are these domains for different customers/users who need segregation or are these for your company alone and you're just adding some new domain names that the company has acquired?

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i would ned segregation for these domains... accepted domains wont do the job... i have multiple domains, and there is the potential for multiple users on different domains. i tried using accepted, but it got awkward... – TiernanO Jan 17 '11 at 20:25

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