The error code 2 was returned when trying to remove the spool file C:\EXCHSRVR\imcdata\in\KTB2M9SQ. This file may cause duplicate mail to be sent when the server is restarted.
If you have software, a file-level virus scanner for example, that is locking the file at the same time Exchange is trying to remove this, you can get this type of error. For example, antivirus scan at file level by NAV 7. It tries to scan messagesin IMCDATA, locks them and IMC can not delete file.
Exclude \exchsrvr on all volumes from scanning by NAV.
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