/^Subject:.*failure.*notice/  REJECT no failure message
/^Subject:.*Returned.*Mail/   REJECT no failure message
/^Subject:.*Undeliver.*/      REJECT no failure message
/^Subject:.*Delivery.*Fail.*/ REJECT no failure message
/^Subject:.*Delivery Status/  REJECT no failure message
/^Subject:.*Delayed Mail.*/   REJECT no failure message
/^Subject:.*not.*delivered/   REJECT no failure message
/^Subject:.*Message.*blocked/ REJECT no failure message