anchor.diff:  ifmail    unix  -       n       n       -       -       pipe
     flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
   bsmtp     unix  -       n       n       -       -       pipe
  -  flags=Fq. user=foo argv=/usr/local/sbin/bsmtp -f $sender $nexthop $recipient
  +  flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender $recipient
  +scalemail-backend unix	-	n	n	-	2	pipe
  +  flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store ${nexthop} ${user} ${extension}
  +mailman   unix  -       n       n       -       -       pipe
  +  flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py
  +  ${nexthop} ${user}
  +
   amavis    unix  -       -       -       -       2       smtp
     -o smtp_data_done_timeout=1200
     -o smtp_send_xforward_command=yes
  
positive.code:   -o max_use=20
  127.0.0.1:10025 inet    n       -       -       -       -       smtpd
    -o content_filter=
    -o local_recipient_maps=
    -o relay_recipient_maps=
    -o smtpd_restriction_classes=
    -o smtpd_delay_reject=no
    -o smtpd_client_restrictions=permit_mynetworks,reject
  
negative.code:   -o smtpd_hard_error_limit=1000
    -o smtpd_client_connection_count_limit=0
    -o smtpd_client_connection_rate_limit=0
  #  -o local_header_rewrite_clients=
  #  -o local_recipient_maps=
  #  -o receive_override_options=no_header_body_checks,no_unknown_recipient_checks
  #  -o receive_override_options=no_header_body_checks,no_unknown_recipient_checks,no_milters
  #  -o relay_recipient_maps=
  