I'm in the process of migrating a remote site to Exchange 2010 from 2003. In our main site we have a 2010 CAS fully functioning. This remote site is non-internet facing which I made sure to specify during setup.
I'm noticing once I migrate a user to 2010 in the remote site, they are no longer able to proxy OWA from our main site. It works internally because it appears that it's passing it to the actual internal name of the server. Externally obviously this fails.
I have made sure that there is no ExternalURL specified for OWA in the remote site. I don't understand why it's trying to pass me to the internal URL. Can someone help?
Edit: As soon as I try to login to an account in second site from first site OWA, it redirects to this URL: https://SiteB-Internal/owa/auth/logon.aspx?url=https://SiteB-Internal/owa/ping.owa&reason=0