Problem:Â Within Outlook 2011, I would get the following error:
Could not synchronize record: Returned mail: see transcript for details to Exchange server.
Operation would change object type, which is not permitted.
Error code: –19760
Tried deleted emails and meeting requests that we thought were causing problems with no luck. Checked all the logs on the exchange server but there was nothing to give a clue to what was wrong.
Solution:
There isn’t a clear cut solution to this problem because several emails and/or folders can be the cause of this problem. Here are the step that I took to fix my particular problem.
- Turn on logging within Outlook 2011 for Mac. Instructions on how to turn on logging can be found here.
- Open the log file within console and I watched the log as Outlook 2011 was initializing. The error, for me, seemed to have happened at startup.
- I noticed within the log that I got a “recoverable error†in regards to a folder that was created to store pop3 messages from another account.
- Deleted that folder and then re-created it and the error went away.
So it turns out that downloading email from a separate account into a folder caused an issue with the Exchange server.  This may not be the cause for all so watch the logs. But most likely, error –19760 is caused by a folder or object that, for some reason, can’t sync with Exchange.
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