iPad Air - "This message has not been downloaded from the server."
I have an email in my Outlook mailbox that will not delete or move. It was originally received Aug 12, 2015. Upon attempting to delete or move it the email header displays but the body of the email says, "This message has not been downloaded from the server." How do I get rid of it? It does not display on my iPhone, just my iPad.
iPad Air, iOS 9.0.1, Outlook email