to sent the email you have the following code:
<?php
if ($WAFV_Errors == ""){
mail("meindert@mrbjquery.nl","response to website",$_POST['Bericht'],"From: ".$_POST['email']);
}
?>
the $WAFV_Errors array will be blank when the page loads. You should use the following to trigger the email:
<?php
if (isset($_POST["Default_submit"])) {
mail("meindert@mrbjquery.nl","response to website",$_POST['Bericht'],"From: ".$_POST['email']);
}
?>
so it will only trey to send the email if the form is submitted.