title: Detect if User is logged in to Outlook Web Access
body: <p>I've a group of employees whom use Outlook Web Access exclusively, and they are complaining that mailto: links on our intranet don't work for them because they don't open OWA (I can't change the settings on the individual machines, fyi).</p>
  
  <p>I'm looking for some kind of way to have an intermediary page that I'll redirect them too when they click a mailto: link, which checks for an OWA login, and if it's found, will redirect the user to OWA. If no login is found, it will open a standard mailto: command.</p>
  
  <p>MY PROBLEM: <strong>I can't seem to find a way to detect if they are logged into OWA.</strong> I can't use normal AJAX or Iframes because those elements are not allowed to inspect the contents of a page loaded from a different domain (our intranet is <em>NOT</em> on the same domain as OWA).</p>
  
  <p>I even tried hitting the OWA url in code (C#) using the WebRequest class of System.Net, but I get a 400 error there for some reason. </p>
  
  <p>I tried AJAX, IFrames and WebRequest against both the base URL of the OWA system, as well as the URL that you are redirected to for a login. All fail as described above.</p>
  
  <p>Does anyone have a way of detecting an OWA login? I don't need to 'scrape' anything from a page in OWA, I just need a yes/no answer for if they are logged in or not.</p>