if($_POST)
{
$email = $_POST['email'];
mysql_query(“DELETE FROM wp_newsletter WHERE email = ‘”.$email.”‘ “);

if(mysql_affected_rows())
{
echo ‘You are unsubcribed successfully from our newsletter.’;
}
else
{
echo ‘Your email address did not match with our newsletter subcribe list.’;

}

echo ‘
Go Back‘;

}
else
{
?>
Please enter your email address to unsubcribe from our newsletter:

}
?>