I'm 50/50 on posting this here first, but here goes. I've recently switched over to GCC High and began having users access their mail there. It seems the New Outlook has issues getting connected. Does anyone know of a way to configure on the back end to allow it to connect?

The issue that we see is "No reply Address is registered for the application", which is a common error for apps registration. That said, I don't think I can control that at all. Perhaps I am wrong.