File opensmtpd.service of Package opensmtpd

[Unit]
Description=Simple Mail Transfer Protocol daemon
Documentation=https://www.opensmtpd.org/manual.html man:smtpd(8) man:smtpctl(8) man:smtpd.conf(5)
Wants=network.target
ConditionFileIsExecutable=/usr/sbin/smtpd

[Service]
Type=exec
ExecStartPre=/usr/sbin/smtpd -n
ExecStart=/usr/sbin/smtpd -d
Restart=on-abnormal

[Install]
WantedBy=multi-user.target