Filtering Your Email In cPanel

Point your browser to www.yourdomain.com/cPanel.
Login to the control panel using your username and password supplied to you at sign up.
Click the 'User Level Filtering' option found in the 'Mail' section of the main cPanel page.
Click 'Manage Filters' next to the email address for which you want to set up email filters.
Click 'Create A New Filter'. Now you see the filter set up page.
Enter in a Name for the filter and tab to the next option.
Choose where you want cPanel to look within the email. Choose to look within the email subject, body (the actual text of the email), the header (which is the code within an email you don't usually see, containing route tracing lines, email configuration lines, and more) or even the To: address.
Next choose how you want the filter to search your email. Choose to see if the email contains some text, actually equals your search text, equals a regular expression (see more on regex expressions here) or other options.
Next choose a destination for the email. Set it to another email account, like spam@yourdomain.com! Or you can even discard the email, so you never even have to see it...
Click 'Activate'. Your filter is now active. Any mail that matches your filter will be acted upon based on your filtering rules set up here.