Forum Discussion
Email Routing M365
I have a client that currently has 20+ mailboxes hosted by an external provider and 20+ hosted in M365. The mx records for the domain currently do not route to Outlook, and email forwarders have been...
Depends on how the domain is configured, generally speaking you will want it set as Internal relay: https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/manage-accepted-domains/manage-accepted-domains#configure-the-domain-type