[Unit]
Description=Command Scheduler
After=nss-user-lookup.target network.target time-sync.target
After=postfix.service sendmail.service exim.service

[Service]
ExecStart=/usr/sbin/cron -n
ExecReload=/usr/bin/kill -s SIGHUP $MAINPID
Restart=on-abort
KillMode=process
TasksMax=infinity

[Install]
WantedBy=multi-user.target