Soap Error

I have a user that is now experiencing an error with his External IMAP account.

A network service error has occurred. msg: system failure: FETCH failed
code: service.FAILURE
method: ImportDataRequest
detail: soap:Receiver
trace: btpool0-4111:1208338699393:93ae803fb1eb819a

External account is up and accessible via alternative method, and email service does not seem to be otherwise interrupted. Any ideas as to what this error is referring to?

Hey Thomas,
Can you get the mailbox.log file for us?

Thanks,
john