Cron jobs are scheduled tasks that take place at predefined times or intervals on the server. Often, a cron job is a series of simple tasks executed from a script file. cPanel offers this screen as a tool for setting up cron jobs. Be careful when scheduling cron jobs. Setting them to run too often may slow down your server.
The Cron Email section of this interface allows you to specify an email address at which you would like to receive notifications whenever your cron jobs are run.