> > All of the other emails that were sent before and after this particular > email have the X-Spam-Status and X-spam-Report scoring, > > So Spamassassin was running correctly. >
So something went wrong with this one. It should have headers, maybe some communication problem. I have configured the MTA to process the messages anyway if spamd is not available. You can also configure to bounce the message with an 'Temporary unable to process'..