[Unit] Description=sendmail wrapper After=network.target [Service] Type=forking ExecStartPre=-/bin/mkdir /run/sendmail_wrapper ExecStartPre=/bin/chown nobody:nogroup /run/sendmail_wrapper ExecStartPre=/bin/chmod 2775 /run/sendmail_wrapper ExecStart=/usr/sbin/sendmail_server [Install] WantedBy=multi-user.target