how to disable email from cron jobs
From WebHostingNeeds.com
When you run cron jobs on linux/freebsd, you will get email with result on every time cronjob runs.
You can disable this by adding following to end of the script.
>/dev/null 2>&1
This will redirect the out put from the script to null device /dev/null
Since cron have no output, no mail send to user.