23. August 2010 23:12
I just updated a customers Exchange 2007 from SP1 to SP3.
After the upgrade the OWA did not work anymore. When going to the https://mail.domain.dk/owa a blank page was displayed.
It turned out to be the HTTPS bindings on the IIS default web site that was gone. I added the HTTPS again and the OWA was working again.
Nice and simple, AFTER I had figured out what was wrong.