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Marty DorrenMarty Dorren 

A22 NO Some of the requested messages no longer exist

As of 3 days ago, our email2case functionality returns the following error:

"A22 NO Some of the requested messages no longer exist.;
  nested exception is:
com.sun.mail.iap.CommandFailedException: A22 NO Some of the requested messages no longer exist."

This has worked well for us for literally years.  Any suggestions as to how to troubleshoot this would be appreciated.
Thanks,
Marty
Marty DorrenMarty Dorren
Sorry... Additionally, when the cases ARE created, they are duplicated.