not well formed with php/wml

<?php 
header("Content-type: text/vnd.wap.wml"); 
echo "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>"; 
echo "<!DOCTYPE wml PUBLIC \"-//WAPFORUM//DTD WML 1.1//EN\"" 
. " \"http://www.wapforum.org/DTD/wml_1.1.xml\">"; 
?> 
<wml> 
<card id="email2" title="feedback">
<p> 
        <?php 
        // determine whether email was properly sent 
        if (mail($Email,$Subject,$Message, "From:<jailbox.yahkiddin.com>")) : 
            print "Message has been sent to $Email"; 
        else : 
            print "Could not send message to $Email"; 
        endif; 
        ?> 
        </p> 
<p><a href="http://jailbox.yahkiddin.com/index.php#index>back to index</a></p>
    </card> 
</wml>