Since the disuse of /etc/conf.d/postgrey, the postgrey service has broken passing of the --greylist-text argument. The service file does:

ExecStart=/usr/bin/postgrey --inet=127.0.0.1:10030 \
--pidfile=/run/postgrey/postgrey.pid \
--group=postgrey --user=postgrey \
--daemonize \
--greylist-text="Greylisted for %s seconds"

The %s is apparently expanded to "/bin/sh" by the service script, resulting in the process having the following arguments:

postgrey 7236 22.5 0.9 61848 16944 ? Ss 15:10 0:00 /usr/bin/postgrey --inet=127.0.0.1:10030 --pidfile=/run/postgrey/postgrey.pid --group=postgrey --user=postgrey --greylist-text="Greylisted for /bin/sh seconds"

I prefer the ability to pass other arguments (like --delay) from the config file anyway, so encourage us to go back to it. Was there a reason to get away from it?

~Jacob