Did you ever find a solution for this? I have 1 user who's calendar won't sync new appts from the Exchange server.
![Sync mac calendar with outlook Sync mac calendar with outlook](/uploads/1/2/5/4/125426431/215020989.png)
When items are put on his outlook 2011 calendar, they will sync to exchange 2010 - they show up in OWApp and on his iphone and his ipad. However, when items are put on calendar using his iphone, ipad or OWApp they will never sync to his outlook 2011 calendar (they will show on his OWApp calendar when put on his ipad or iphone).
![Outlook Outlook](/uploads/1/2/5/4/125426431/460726390.jpg)
There is no way you can delete these events all at once. If you have few events on your calendar, you can delete them from the calendar app through the following steps: Step 1: Launch your Calendar App on your iPhone/iPad. Step 2: Click on 'Calendar' at the button of the app. Step 3: Select the 'Edit' button at the top of the screen.
I have done a permissions repair, outlook database rebuild, created a new identity and even setup outlook 2011 on a totally different computer - all with the same result. The only fix I have found is to empty the cache on his outlook calendar and then new items will sync, however future items will not. I have to empty the cache on his calendar several times a day.
Mac OS 10.6.8 Outlook 2011 v.14.1.4 Exchange 2010.