Forum Discussion
Exchange Hybrid sending external email from on-premises
I have an Exchange 2019 server setup as our hybrid server. Mail flow works fine to any mailboxes moved to Exchange Online, inbound from the Internet is delivered successfully to on-premises mailboxes...
Apologies, I forgot this was still up or even got approved. I monitored it the first full day and never saw the post approved. Anyway, I ended up sorting it out. It was never an Exchange issue, but something was up with the VM host the server was on.