I just did a clean install of Exchange 2010. I created A and MX records in my DNS Server to forward traffic to my Exchange Server. Traffic is being forward correctly.
Exchange creates a number of default sites in IIS. These are virtual directories. The part I am not sure about is how to assign one of the virtual directories, under the Default site, a host header? Or do I need to create a new site? Creating a new site - point it to the owa physical folder, give it the host header/name? Would I select http or https? If I select https I am required to select a value in the SSL Certificate drop down. If I select "Exchange Server" SSL Cert I am getting a message "This binding is already used by a product other then IIS. If you continue you might overwrite the existing cert for this ip address:port combination". iis.jpg