Hi.. I have a TMG 2010 Server with OS Windows 2008 Entp with SP1 ,where I have published my OWA. I can successfully browse the outlook page and can login successfully. The only issue I am facing is I cannot receive email form outside (external domain).
I checked my logs on TMG, it is initiate traffic on port 25 to my CAS server and getting close immediately.
Appreciate your help in this regard.