Ever since moving to Outlook 2013, some of our users are experiencing issues where their inbox does not show the count of unread emails. These user's are working in cached exchange mode. Taking them out of cached exchange mode, deleting OST file and then putting back in cached exchange mode usually resolves the issue. However, this is only temporary and the problem comes back. We are running Exchange 2010.
Any suggestions on how to resolve this issue for good?
Thanks.