Mine

<?
session_start();
if ($_POST["vercode"] != $_SESSION["vercode"] OR $_SESSION["vercode"]=='')  {
     echo  '<strong>Incorrect verification code.</strong><br>';
} else {
     // add form data processing code here


// Contact subject
$subject ="$subject";
// Details
$message="$detail";

// Mail of sender
$mail_from="$customer_mail";
// From
$header="from: $name <$mail_from>";

// Enter your email address
$to ='mark@markhiley.co.uk';

$send_contact=mail($to,$subject,$message,$header);

// Check, if message sent to your email
// display message "We've recived your information"
if($send_contact){
header( 'Location: http://www.markhiley.co.uk/messagesent.php' );
}
else {
echo "ERROR";
}
};
?>