File exim.service of Package exim
[Unit] Description=Exim Mail Transport Agent Documentation=man:exim(8) http://exim.org/docs.html After=network.target Conflicts=sendmail.service postfix.service [Service] Type=simple Environment="EXIM_ARGS=-bdf -q30m" EnvironmentFile=-/etc/sysconfig/exim ExecStart=/usr/sbin/exim $EXIM_ARGS User=mail Group=mail PIDFile=/var/spool/exim/exim.pid CapabilityBoundingSet=CAP_NET_BIND_SERVICE PrivateTmp=true ProtectSystem=full NoNewPrivileges=true MemoryDenyWriteExecute=true [Install] WantedBy=multi-user.target