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Yasarmistry-3565 avatar image
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Yasarmistry-3565 asked ·

Exchnage server domain migration

Dear Support,

one of client have exchange 2016 running and currently email id is user1@xyz.com so now we are planning to Migrate with user1@abcd.com..

so email while sending and receiving email must send by user1@abcd.com but if any outside email receive on old email user1@xyz.com that should redirect and deliver on user1@abcd.com..

so could you please share the steps of migration..

your support highly appreciated

office-exchange-server-connectivityoffice-exchange-server-mailflow
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YukiSun-MSFT avatar image
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YukiSun-MSFT answered ·

Hi @Yasarmistry-3565,

To migrate users to a new domain, you can setup trusts between new and old forest and then do a cross forest migration to move the mailboxes over. For the overall guidance, you can refer to the links below (The links are for Exchange 2010 or 2013, but the steps are similar in Exchange 2016):

Cross Forest Migration in Exchange 2013
Cross Forest Migration Guide – Exchange 2010 to Exchange 2010
Please Note: Since the web sites are not hosted by Microsoft, the links may change without notice. Microsoft does not guarantee the accuracy of this information.

Besides, as per your concerning about receiving mails to old domain, you can use email address policy to change users' primary email address to the new domain, and meanwhile keeping the old email address as an alternative address, allowing them to receive emails to both addresses.


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Yasarmistry-3565 answered ·

Dear Support,

Thanks for the reply, but i dont want to do cross migration as my local domain wil remain same but only accepted domain for exchange wants to change..
i want to add one more accepted domain and old accepted domain want to remove but if any body send email on old email domain should get receive and redirect to new domain.

Please advise

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Hi @Yasarmistry-3565,

i want to add one more accepted domain and old accepted domain want to remove but if any body send email on old email domain should get receive and redirect to new domain.

I am afraid this won't work as in order to receive messages sent to the old domain, you'll need to keep it as an accepted domain. Here is a relevant thread for your reference:
Migrating Exchange email domain to new email domain
Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.

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Hi @Yasarmistry-3565,
Just checking in to see if there is any further questions on this. Thanks!


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