Please note that this page does NOT programmatically send anything anywhere, it is but a client-side validation exercise.
Fill-in fictitious data and hit the button. Your email application will open in the end and will ask you if you want to send it or not. If you do not want to send, just cancel.
These validations are intended to help those who really want to post valid data or to prevent vandals from making fun of forms. NEVER think hackers can be stopped by any of these cllient-side technologies.