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Outlook 2011 Sync Issues with Exchange 2010

Had to rebuild my SBS 2011 server after having a punctured raid. Ever since then, any users that use outlook 2011 are having sync issues with Outlook 2011. Their calender items will show sync errors and all their folders will not sync. This only happens with outlook2011.

I have checked the SSL cert and verified its correct. Any ideas on anything else to check here? Not sure what could be different then before that is causing only outlook 2011 for MAC to have issues.
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David Atkin
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Allanore

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Sync error:  An error occurred while updating the calendar event "important event"
Details: please delete this even and create a new event.

Also getting: Could not Synchronize record: Important Appointment to Exchange server: Onmicrosoft

We had to do a complete rebuild of the server and import data from a windows backup. We manually imported exchange .pst data into their mailboxes that we had to create again from scratch.
Here is a sample from the EWS logs.

Verbose      CSyncEngine::FetchRemoteRecords Continuing from recoverable error                     
Verbose      CSyncEngine::FetchRemoteRecords aborting after exception and re-throwing                     
Error      Engine[Exchange folder Test4]: Error during sync:  Error code: -128 ErrorStr: An unknown error has occurred in Outlook.
Verbose      CSyncEngine::FetchRemoteRecords aborting after exception and re-throwing                     
Error      Engine[Exchange folder Test1]: Error during sync:  Error code: -128 ErrorStr: An unknown error has occurred in Outlook.
Info      ---------- Engine: Ending "Exchange folder Test3" Sync [time:3/11/2014 14:44:21 [217317044]] ----------       
Verbose      CSyncEngine::FetchRemoteRecords aborting after exception and re-throwing                     
Error      Engine[Exchange folder Test2]: Error during sync:  Error code: -128 ErrorStr: An unknown error has occurred in Outlook.
Verbose      CSyncEngine::FetchRemoteRecords aborting after exception and re-throwing                     
Error      Engine[Exchange folder Test5]: Error during sync:  Error code: -128 ErrorStr: An unknown error has occurred in Outlook.
Have you got the latest Exchange Rollups installed?

There where issues previously with Exchange 2007 syncing with outlook 2011. Have a read here for your reference:
http://support.microsoft.com/kb/2531208/en-us?sd=rss&spid=10926