Oct 15 2020 04:27 PM
Oct 16 2020 12:15 AM
It's possible, and easily done via PowerShell. Question is what exactly you want to achieve here, change the SMTP address, change the UPN, change any additional references to the domain? And once you make the changes, do you need to keep the old aliases, for delivery purposes?
You can try something like this for example:
This will make firstname.lastname@example.org the new primary SMTP address, while preserving the old one as secondary.
Oct 16 2020 10:23 AM
Thanks for that. Not so easy in a hybrid environment or is it?
Oct 17 2020 08:43 AM
Changing the suffix makes no difference in Hybrid either, the article you're citing is for different issue (cloud-created shared mailbox that you want to access cross-premises).