Ready to jump off the building . . . .
Small client with an existing Workstation connecting to Office 365 Hosted Exchange. Everything works fine.
Upgrades from Office 2007 to Office 2013. None of the profiles migrate over.
Two of the three addresses that she uses within Office 365 come over with no problem. The third refuses to autodiscover . . . . even though the address is using the same domain name as one of the two that DOES work.
I've deleted all profiles and recreated. Office and Windows are fully patched. I've repaired the Office 2013 install using Control Panel. I've deleted the registry keys for the old Office 2007 profiles. Still nothing.
Any attempt to create the profile hangs on "Searching for your mail settings" within the mail applet.