[Unit] Description=Stalwart Mail Server Server Conflicts=postfix.service sendmail.service exim4.service ConditionPathExists=__PATH__/etc/config.toml After=network-online.target [Service] Type=simple LimitNOFILE=65536 KillMode=process KillSignal=SIGINT Restart=on-failure RestartSec=5 ExecStart=__PATH__/bin/stalwart-mail --config=__PATH__/etc/config.toml SyslogIdentifier=stalwart-mail User=stalwart-mail Group=stalwart-mail AmbientCapabilities=CAP_NET_BIND_SERVICE [Install] WantedBy=multi-user.target