:0
* ? echo "$EQ_TO" | $EGREP -qif $CONF/cclists
{
  CORRESPONDENTS=`formail -cxTo: -xCc: -xFrom: | tr -s '\n' ,`
  LOG="listquirks:   adding M-F-T header for message on list $EQ_TO$NL"
  :0 fw
  |$FORMAIL -a "Mail-Followup-To: $CORRESPONDENTS"
}

# vim:ft=procmail