Forum Discussion
Exchange 2010 Hybrid - On-Premise mailboxes don't receive external domain emails
Hi all, I am going into a really weird issue, I have a Exchange 2010 Hybrid scenario, the MX records are pointed to Exchange Online. The issue is that On-premise mailboxes are not receiving e...
This is a good resource for these kinds of issues - https://blogs.perficient.com/2015/02/10/office-365-common-exchange-online-hybrid-mail-flow-issues/