auto-reply not auto-replying

Any ideas why this code fragment sends all messages to the bit bucket
instead of auto-replying?

| (formail -brtD 128 /tmp/everybody.cache -A"X-Loop: EveryBodyTrap" ;\
echo "Your message to the mailing list was rejected." ;\
echo "You are NOT authorized to send to this list." ;\
) | $SENDMAIL -oi -t

--

     __ _                   ____
    / /(_)_ __  _   ___  __/  _ \ __  __ _  _  _
   / / | | '_ \| | | \ \/ /| |/ //  \/ _| |/ / /
  / /__| | | | | |_| |>  < | |\ \|()||(_|   <\ \
  \____/_|_| |_|\__,_/_/\_\|_| \_\__/\__|_^\_/_/
  mv $win /dev/null


_______________________________________________
procmail mailing list
procmail(_at_)lists(_dot_)RWTH-Aachen(_dot_)DE
http://MailMan.RWTH-Aachen.DE/mailman/listinfo/procmail