title: Transaction failed. The server response was: 5.2.0 STOREDRV.Submission.Exception:SendAsDeniedException.MapiExceptionSendAsDenied;
body: <p>Can someone help me out to this below issue. We done change smtp to office365 but after change the smtp host, we start getting below issue</p>
  
  <p>Transaction failed. The server response was: 5.2.0 STOREDRV.Submission.Exception:SendAsDeniedException.MapiExceptionSendAsDenied; Failed to process message due to a permanent exception with message Cannot submit message.</p>