title: TF400424: Failed to send to Microsoft Outlook
body: <p>When i try to send a work item from VS 2012 or 2013 to Microsoft Outlook 2013.</p>
  
  <hr>
  
  <h2>Microsoft Visual Studio</h2>
  
  <p>Team Foundation Error</p>
  
  <h2>TF400424: Failed to send to Microsoft Outlook: Object reference not set to an instance of an object.</h2>
  
  <h2>OK</h2>
  
  <p>Probably there's something wrong with the TFS Add-in for Outlook. Did anybody solve this issue already?</p>