All, I've found several topics CLOSE to my issue, but none that fit it perfectly. I am an Outlook for Mac user with a MacBook Pro and using Office 365 for our Exchange hosting. Last Friday, I was running Outlook for Mac 2011 and I had an issue where my Inbox wouldn't sync. I only got the message "Sync pending for this folder" in the bottom right of the screen next to the Connected status. At that point, the only thing I could do was quit/restart Outlook to get it to sync. After some research, on Monday morning upgraded Outlook for Mac 2011 to the latest version (14.4.7 I believe) and updated my Mac OS to make sure that I had the latest updates to both packages. Still had the same issue. Today, I found Outlook for Mac (the Office 365 edition) and I running that (v.15.4) but I STILL have the "Sync pending this folder" message and it's not updating.
To date, the only solution that works is to Go to the Outlook menu and click "Work Offline" then, a few seconds later, click it again to go back online.
The only solution that I've seen but haven't tried is to "Disable EWS Digest Authentication" but I don't know how to do that via Office 365 hosting.
Thanks in advance for any help/ideas.
--MT