When using yum-cron, you might want to receive email notifications when updates are applied. Here is how you enable these notifications for CentOS. This article assumes a properly configured mail service. Installing yum-cron Install yum-cron using the yum package manager: yum install yum-cron Configure yum-cron Modify the /etc/sysconfig/yum-cron file and add your email address to the MAILTO line. MAILTOfirstname.lastname@example.org Be sure to read up on the other settings in this file.