I have one incoming email that my office 365 stalls on. I always get the same message:
I saw another line of questioning regarding Office 2010 with an easy fix of upgrading to Office 2013 (Outlook hangs on emails that have images with invalid network paths) where there was also a mention of disabling feeds.feedburner.com: "In my case the emails had an image attempting to load from //feeds.feedburner.com blocking that network location is rather severe though if you run an RSS reader". I am willing to block it as I don't believe I run an RSS Reader. Any suggestions on how to do so?