Exchange Autodiscover with HTTP redirect method
Server 2012 R2
Create a new Website on the CAS "autodiscover-redirect" create a virtual directory called "autodiscover" Click the virtual directory then open "Http Redirect enter the url of the exchange server e.g. "https://contoso.com/autodiscover/autodiscover.xml" (Must be HTTPS) Ensure both "Redirect all requests to excact destination" and "Only redirect requests to content in this directory" are ticked Test using either https://testconnectivity.microsoft.com/ or a mobile / outlook client.