[Unit] Description=Postfix Mail Transport Agent (instance %i) Documentation=man:postfix(1) PartOf=postfix.service Before=postfix.service ReloadPropagatedFrom=postfix.service After=network-online.target nss-lookup.target Wants=network-online.target [Service] Type=forking GuessMainPID=no ExecStart=/usr/sbin/postmulti -i %i -p start ExecStop=/usr/sbin/postmulti -i %i -p stop ExecReload=/usr/sbin/postmulti -i %i -p reload [Install] WantedBy=multi-user.target