title: How can I retrieve the full MIME message from an Microsoft Outlook Add-In?
body: <p>I am developing an Outlook Web Access Add-In in which I want to access all the data of an email including sender address, recipient address, subject and sent date etc. I also want to download the entire message file. I have found one <a href="https://msdn.microsoft.com/en-us/office/office365/api/mail-rest-operations#GetMessage" rel="nofollow noreferrer">Outlook Web REST API</a> but don't know how to use it. </p>
  
  <p>Can anyone explain how to use this API to retrieve the entire MIME message and provide an example?</p>