[Unit]
Description=pySPF Milter
Documentation=man:pyspf-milter(8) man:pyspf-milter.conf(5) 
After=network.target

[Service]
Type=simple
PIDFile=/run/pyspf-milter/pyspf-milter.pid
ExecStart=/usr/bin/pyspf-milter /etc/pyspf-milter/pyspf-milter.conf

[Install]
WantedBy=multi-user.target