Mar 05 2020
07:43 AM
- last edited on
Feb 07 2023
08:08 PM
by
TechCommunityAP
Mar 05 2020
07:43 AM
- last edited on
Feb 07 2023
08:08 PM
by
TechCommunityAP
Hi,
In our company, we bought a new domain and we want to move all of our existing mailboxes to the new one.
I already have both domains registered in the same tenant.
I mean support@contoso.com to support@contosola.com etc.
May you please give me any advice on the best way to perform this?
Mar 05 2020 08:32 AM
There's no need for "migration". All you need to do is change the Primary SMTP address to point to the new domain, as well as any other attributes that make sense for your scenario (UPN for example).
Mar 09 2020 08:06 AM
Mar 10 2020 05:51 AM
@gteibo1Hi there!
Your description is a bit vague, lets see if i understood you correctly:
A)
You have a tenat X and you are NOT going to setup a new tenant but just register a DOMAIN in the existing tenant x and want to change the UPN so that the users receive mail with the new Domain name?
OR
B)
You want to physically move mailboxes between Tenants?
Two totally different things here, let me know what you actually want to achieve and am happy to help. Done some 300+ migrations so might be able to help you :)
EvilSecurityFellow
Oct 05 2020 01:04 PM
Hi we are also doing a migration from one Office 365 tenant to another in batches. the UPN is changing because they use firstname.lastname@domain.com
Source was firstinitial.lastname@domain.com
I have a question about Resource Room Mailboxes. Has anyone dealt with that.
Like how to handle Meeting Rooms when you migrating from Office 365 to Office 365 and your domain and upn are changing actually
Thanks
Oct 05 2020 05:45 PM
Mar 15 2023 08:55 PM
@Lewis-H That sounds very wrong, why would the OP need to disable federation and ADSYnc, that will break some Integrations
Mar 16 2023 05:40 PM
How about cross-tenant mailbox migration?
Cross-tenant mailbox migration - Microsoft 365 Enterprise | Microsoft Learn