Publishing Exchange Server 2013 using UAG 2010

A redirect response was received, but only HTTPS redirect URLs are supported in response to a POST request. The URL that was received was /InternalSite/InitParams.aspx?referrer=/InternalSite/InternalError.asp&site%5Fname=emailservices&secure=1&error%5Fcode=12&ErrorType=HTMLErrorPage.

HTTP Response Headers:
Content-Length: 282
Cache-Control: private
Content-Type: text/html
Date: Sun, 23 Mar 2014 12:34:15 GMT
Location: /InternalSite/InitParams.aspx?referrer=/InternalSite/InternalError.asp&site%5Fname=emailservices&secure=1&error%5Fcode=12&ErrorType=HTMLErrorPage
Set-Cookie: ASPSESSIONIDAGBRBQSQ=OHFNFKGDFHKFIKCABLFOILGG; secure; path=/
Server: Microsoft-IIS/7.5
X-Powered-By: ASP.NET

Elapsed Time: 1383 ms.