Edit File: mailman.service
[Unit] Description=mailman services ConditionPathExists=!/var/cpanel/dnsonly Requires=exim.service [Service] Type=forking PIDFile=/usr/local/cpanel/3rdparty/mailman/data/master-qrunner.pid ExecStart=/usr/local/cpanel/scripts/restartsrv_mailman --no-verbose --notconfigured-ok [Install] WantedBy=multi-user.target