I have a 2008 server with Exchange 2007. I had the usual problem where it would work fine on the inside of the net, but not from outside. Found out about SAN certificates, got one, installed it. Now in the process of this I may have changed a few things... but the upshot is that while everything works fine for HTTP requests,local or remote, HTTPS appears to be ignored completely.
It comes back instantly with : Internet Explorer cannot display the webpage.
Even having removed the SAN cert, it still wont respond to HTTPS requests?