How do create a feedback form on my website?

Firstly create your form using your website editing program, and then use the following code on the opening <form> element.

<form action="http://www.rocketuk.net/cgi-bin/formmail.pl" method="post" name="YOUR_FORM_NAME_WITHOUT_SPACES">
<input type="hidden" name="subject" value="THE SUBJECT LINE OF THE EMAIL THAT WILL BE RECIEVED" />
<input type="hidden" name="recipient" value="THE EMAIL ADDRESS YOUR WISH THE FORM TO BE SENT TO" />
<input type="hidden" name="redirect" value="http://www.YOUR_DOMAIN/THE PAGE THE USER WILL BE FORWARDED TO AFTER FORM IS SENT " />
<input type="hidden" name="env_report" value="REMOTE_HOST,HTTP_USER_AGENT" />

You must request access to be able to use formmail, to do this please with your domain name.