I have an exchange mailbox that I use at work, which syncs with iPhone, iPad and Mac for 8 months without any issues at all. Today at 1252pm outlook just froze on my Mac and won't sync or do anything. My iPhone and iPad are fine and work, my online exchange is fine and works just outlook from my mac! Other users here have same system, accept instead of mac that have a windows based laptops, they are all working correctly. The issue is only from Mac Outlook, please help/advise.

PS, i have rebooted numerous times, there is no mail in the outbox this has been deleted, I've ton offline and back on line, quit and restarted.

Outlook itself is stuck showing 'determining changes'