--- postgrey           2008-05-18 17:18:09.000000000 +0200
+++ postgrey.patched   2008-05-18 17:17:57.000000000 +0200
@@ -76,6 +76,7 @@
        fi

        start-stop-daemon --start --quiet --background \
+               --pidfile=${POSTGREY_PID} \
                --exec /usr/bin/perl -- -T -w /usr/sbin/postgrey \
                --${POSTGREY_ADDR} \
                --daemonize \