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 ...
You may go ahead with the MX cutover and Autodiscover change to Exchange Online without any issues. This will eliminate your Dependency on Exchange On-premises and Hybrid to some extent. Hope you have the Defender for Office 365 License. Also, please make sure to create the Defender for Office365 Policies, Anti-phishing policy, Antispam policy, Antimalware policy, SafeLink attachment policy, and SafeLink Policy. There won't be any issues for you with the On-premises resource mailbox functionalities by doing these changes. By the way, is there any reason to keep the resource mailboxes On-premises? You may migrate them to the cloud to remove the complete dependency on the on-premises server and Exchange Hybrid.