Forum Discussion
Pointing MX and Autodiscover to 365
We recently migrated to Exchange Online via Exchange Hybrid. MX and Autodiscover are still pointed to on-prem environment as we have room booking mailboxes and resource mailboxes located on-prem. Is ...
Not sure how your room booking works. With autodiscover pointing to EXO, Outlook clients of EXO based mailboxes would not be able to connect to the on-prem mailboxes. You might be able to configure Outlook on those devices to force a connection to on-premises Exchange. Otherwise you could migrate the mailboxes and configure the room booking app to connect to EXO mailboxes. There's hardly any room booking systems that don't support EXO mailboxes.
I can't think of any impact of changing mail flow by pointing MX record at EXO as long as you are syncing all AD objects to Entra ID