Mail Class

<?php
session_start();
$_SESSION[next_send] = 0;
 
define (HEADER, 'From: Messag via web <[email protected]>' . "
" .'X-Mailer: PHP');
define (RECIPIENT,'[email protected]');
define (SUBJECT,'This is a subject');
define (REFERER,'www.domain.de');
define (REDIRECT,'http://www.domain.de');
define (TIMETOWAIT, '30');
define (CODE,'4815162342');
 
// DO NOT EDIT ANYTHING AFTER THIS !!! //
 
class MyMailer
{
	private $postdata = null;
	private $message = null;
 
	public function __construct($post)
	{
		if (REFERER == $_SERVER['HTTP_HOST'] && CODE == $post['code'])
		{
			$this->handleMessage($post);
		}
		else
		{
			echo "there is something wrong!";
			exit();
		}		
	} 
 
	private function handleMessage($post)
	{
		foreach ($post as $key => $value)
		{
			if (!preg_match ("#", $value))
			{
				$this->message .=  $key." : ".strip_tags(trim($value))."\n";
			}
		}
		$this->sendMail();
	}
 
	private function sendMail()
	{
		if (time() >= $_SESSION[next_send])
		{
			mail(RECIPIENT, SUBJECT, $this->message, HEADER);
			$_SESSION['next_send'] = time()+TIMETOWAIT;	
		}	
	}
}
$mail = new MyMailer($_POST);
 
header('Location: '.REDIRECT);
exit();
?>