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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: â€“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.
There isnâ€™t a clear cut solution to this problem because several emails and/or folders can be the cause of this problem.Â Here are the step that I took to fix my particular problem.
- Turn on logging within Outlook 2011 for Mac.Â 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.Â The error, for me, seemed to have happened at startup.
- I noticed within the log that I got a â€œrecoverable errorâ€ 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.Â Â This may not be the cause for all so watch the logs. But most likely, error â€“19760 is caused by a folder or object that, for some reason, canâ€™t sync with Exchange.