Pegasus Mail & Mercury

I'm starting to see an increasing amount of spam get through where the MAIL FROM on the header is a valid local user (usually the same as the RCPT TO).  But the from address within the DATA portion is a different address.  Since the MAIL FROM is a valid local user, I cannot add it to the killfile.  Is it possible to reject these messages, where the from address doesn't match, using Transaction Level Filtering?

Thanks! 

No, you can't access message headers in the SMTP transaction filter. It would probably be possible to create a daemon to do it with the new, not yet publicized daemon interface, though. Still I'm not sure it's always wise to reject on mismatch here; a redirected message might have the mail address of the person redirecting it as SMTP MAIL FROM.

/Rolf