Changing Exchange Server 2016 Domain

Question

_{Tuesday, May 24, 2016 7:40 PM}

Yesterday we renamed our active directory from network.ourdomain.net to ourdomain.net, and I'm trying to set up the email system to only have [email protected] instead of [email protected]. When I go into email address policies to change it, it won't allow me to change anything. I've added ourdomain.net to the Accepted Domains and set it as default, but still no luck. 

All replies (1)

_{Wednesday, May 25, 2016 6:46 AM ✅Answered}

Hi TMS,

Base on my knowledge, it is not supported to change domain name once exchange have been installed.

If you want to rename domain name, the workaround is to create a new AD forest, install Exchange into the new forest, and migrate all the objects.

Please take a look at the following articles:

Risks of Renaming Your Domain in Active Directory

Active Directory and Exchange - too tight for a rename

Please note: Since the website is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information. And the changes made in the above blog is not supported officially by Microsoft.

Best regards,

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