This issue occurs only on computers that are running Windows 10, version 1703 or later, and Microsoft 365 version 1807 or later. I think I’m going to try what I mentioned in my last post and see what happens. It works well for Outlook unless the user has a gigantic mailbox and then it just takes a while for it all to sync up. One of the options was to save a diagnostic file for MS support. We have our subscription through Rackspace and I’ll see if they can help later this afternoon as that is wh...