When installing exchange there's a field that would ask if the Cas server role will be internet facing. So does that refer to OWA or something else? if it's something else what does it refer to?
OWA use to be on the perimeter for us but with 2010 that's no possible anymore. So for us OWA will be internal and we will use a ISA server/applicance to do the reverse proxy
In this situation do we need to internet facing address?