Hello experts,
I have a quite rare scenario on the following:-
1. We have moved few mailboxes from exchange onpremise to exchange online
2. Already performed the Azure AD sync and configuraton, exchange hybrid wizard and 0365 integration
3. Working as expected but only a few users since it is still not yet roll out.
4. All mailflows, Distribution list, users are sync and assigned license users is able to carry out their email activity as per normal
However, the factory plant received an instruction from the HQ which is on another country to roll back all the configuration which was done as they want to have their own tenant and use their exchange servers (which consists of couple of exchange servers based on that location). so we have to move back all the mailboxes back to onpremise and undo the deployment which was done.
All the scenario which i found is removing hybrid configuration after all the mailboxes moves to exchange online but my scenario is different where basically move back all to onpremise and remove the hybrid configuration
Here is what I have so far:-
Move back all the mailboxes from exchange online back to exchange onpremise - Done
Unassigned the 0365 business standard license from the users
Change back the UPN in onpremise
Remove Hybrid configuration (Remove-HybridConfiguration)
Remove O365 Send Connector from onpremise exchange
Remove the O365 Accepted Domain from onpremise exchange
Remove the Connector in exchange online (connector which is back to onpremise)
Remove the organization sharing in exchange online
My objectives is to remove the hybrid on the exchange first completely before going to the next phase which is unsycn all the users from onpremise AD and uninstall Azure AD
After performing step 1-8 I can still see the following:-
Get-IntraOrganizationConnector and Get-RemoteDomain still showing the exchange online (O365). How do we remove this setting and what is the impact after removing those?
How do we remove the O365 routing address on the users who is already in exchange onpremise. I can see some additional email addresses as below in the email address tab of the users:-
username@mail.domainname.onmicrosoft.com
username@domainname.onmicrosoft.com
and couple of x500 email address which generated earlierI have remove the O365 routing address in the email address policy but seem it is not taking effect
Amny impact when removing x500 email address
Thank You
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