We have Exchange 2013 and OWA deployed externally thru TMG 2010.
The thing is that current settings on Exchange 2013 virtual folder (OWA & ECP) are set to:
- Integrated Windows auth
- Basic Authentication
And if we switch those to Use-Forms-based authentication, then OWA stops working outside thru TMG.
We would like to achieve that users internaly should be able to login thru forms
bostjanc