If you are using the cgi-email script to create your email form, be sure the properly code the hidden “success” tag in the form. This should follow the format:
<input type=”hidden” name=”success” value=”http://www.your-domain.com/thankyou.html”>
Notice that the url of the confirmation page noted in the value must be an absolute path. If you specify a relative path such as: value=”thankyou.html”, the confirmation page may return an error.
Also, the name of the tag must be “success” in order to function properly. Lastly, be sure that this tag is located somewhere between the <form> and </form> tags.