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

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

[Install]
WantedBy=multi-user.target