We had a mailflow issue this morning with our exchange front end. I rebooted it and fixed the problem. But now when we go to our OWA site we are getting a 403 Forbidden error. If I start the address with HTTPS it works but doesn't do the correct redirect when we type in just the host and domain like it used to. I'm sure it is just an easy setting change but I haven't been able to find a solution to my exact issue.