Edit file

File name : saslauthd.service

Content :[Unit] Description=SASL authentication daemon. [Service] Type=forking PIDFile=/run/saslauthd/saslauthd.pid EnvironmentFile=/etc/sysconfig/saslauthd ExecStart=/usr/sbin/saslauthd -m $SOCKETDIR -a $MECH $FLAGS RuntimeDirectory=saslauthd [Install] WantedBy=multi-user.target

Save