Oh well you are passing your mails to spamd, and what happens when they return, they are passed to spamd again, and again, and again, etc. How have you set this up? Do you check for spamassassin flags that are already present and then don't use them on the final delivery? How are you reinjecting mails to be put into the mailstore? And since you are talking about error message. What about posting them. I guess that would help a lot!