Edit File: exim.service
[Unit] ConditionPathExists=!/etc/eximdisable Description=Exim is a Mail Transport Agent, which is the program that moves mail from one machine to another. Wants=clamd.service spamd.service mailman.service [Service] Type=forking EnvironmentFile=/etc/sysconfig/exim PIDFile=/var/spool/exim/exim-daemon.pid ExecStart=/usr/libexec/exim.daemon start ExecReload=/usr/libexec/exim.daemon reload [Install] WantedBy=multi-user.target