Problem: Exchange autodiscover process did not work so Outlook automatic profile creation did not work. No problem manually configuring OL profile.
Outlook Test E-mail AutoConfiguration: Autodiscover to https://fqdn/Autodiscover/Autodiscover.xml failed (0x800C8203)
Everything ok after running: Test-OutlookWebServices -ClientAccessServer CAS-Server
Cause: Outlook retrieved wrong smtp address during automatic profile creation. Outlook automatic profile creation worked after correcting e-mail address and also Outlook Test E-mail AutoConfiguration.