[Exim] (no subject)

Hi folks
I saw this line

sender_reject
sender_reject_recipients

How can I use this in this config?

# --------------------------------------------------------
# bounces spam and known porn mail
# ---------------------------------------------------------
if $header_from: contains "@star4.onesourcecorp.com"
then
  fail text "This message has been rejected since it has\n\
      the signature of a known spam in the header."
  seen finish
endif
if error_message and $header_from: contains "Mailer-Daemon@"
then
  # looks like a real error message - just ignore it
  finish
endif

Jan Erik
Norway