[Unit] Description=Courier ESMTP-MSA Daemon Requires=authdaemond.service After=authdaemond.service [Service] Type=forking ExecStartPre=/usr/bin/sh -c "[ -d /var/run/courier ] || mkdir -p /var/run/courier && chown courier:courier /var/run/courier" ExecStart=/usr/sbin/esmtpd-msa start ExecStop=/usr/sbin/esmtpd-msa stop PIDFile=/var/run/courier/esmtpd-msa.pid [Install] WantedBy=multi-user.target