How to disable e-mail notifications from cron jobs

How do I to disable the mail alert send by crontab? When my job is executed and the jobs cannot run normally it will sent an email to root. Why do I receive e-mails to my root account from cron? How can I prevent this?

Hi, all system/cron errors going to root account, you can not disable it.
You can remove your personal email from CWP.Admin -> CWP Settings .