etc/sv/postgrey/run

   1 #!/bin/sh -eux
   2 exec 2>&1
   3 sv=${PWD#/etc/sv/}
   4
   5 install -d -m 2710 -o postgrey -g postfix \
   6  /var/spool/postfix/postgrey
   7
   8 exec /usr/bin/chpst \
   9  -u "$sv":"$sv" \
  10  /usr/sbin/postgrey \
  11  --auto-whitelist-clients=5 \
  12  --dbdir=/var/lib/postgrey \
  13  --delay=65 \
  14  --max-age=35 \
  15  --privacy \
  16  --unix=/var/spool/postfix/postgrey/socket