Hello,
I wanted to see if anyone has any suggestions on reverse proxy options that can do pre-authentication like TMG use to do? I am currently trying to deploy out a new Excahnge 2013 setup in coexistence with an existing Exchange 2010 environment which will then be migrated over. And one of the requirements is to block certain users from accessing webmail externally while still allowing others to access webmail. That is currently achieved by using a TMG server but that is going to be decommissioned along with Exchange 2010.
I have been searching online but so far I have not found anything that seemed to meet this requirement. I have seen that IIS Web Application Proxy tied in with AD FS would do the job. But there is some issue there with Excahnge 2010 still being active that won't allow it to work. Some suggestions I have seen online involved changing permissions on the IIS directory or modifying web config files but those options didn't seem like they provided a consistent result.
So I am looking for some sort of option that is either inexpensive or some means of leveraging existing Microsoft technologies to achieve my goal any suggestions would be helpful.
Nicholas,