Hi Quintin, Quintin Giesbrecht wrote: > Further to this, I have done some testing, and if I turn Spam Check off, > then it seems to work, so it seems to be something with SpamAssassin - > although, a spamassassin --lint produces no errors. Switch Spam Checks back on and run 'MailScanner --debug --debug-sa' and see what it outputs. Kind regards, Steve.