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Event ID: 8207 Source: EXCDO

Calendaring agent failed with error code <error code> while deleting appointment.
- Error code: 0x80040215 - This error is seen if there is a corruption of the Calendar items in a mailbox or if the Calendar Folder on the mailbox is not accessible due to permissions issues. If the Exchange Installable File System (IFS) Drive (also called M Drive) is being scanned by a file level Virus Scanner (or has been scanned so in the past), then this error might be seen. See MSEX2K3DB for additional information about this issue.
- Error code: 0x8007000e (Error code 0x8007000e) - See ME891082 for a hotfix applicable to Microsoft Exchange 2000 Server.
- Error code: 0x8000ffff (Error code 0x8000ffff) - While unable to source an explanation for an exact match of the error, I came across references to 8206 also pertaining to EXCDO except but failure while saving appointment rather than deleting. See ME299046 for more details.

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