Mail(extra functie?)

<?php 
$your_email = "an_alien@eugamer.com"; 

if($_POST['submit']) 
{ 
$subject = $_POST['subject']; 
$message = $_POST['message']; 
$name = $_POST['name']; 
$email = $_POST['email']; 


mail("$your_email","$subject","$message","\n verzonden door: $name \n zijn email: $email"); 

echo "bericht verzonden"; 
} 
?>
<form action="eumailer.php" method="post">
<table width="0%"  border="0">
  <tr>
	<td>Your name/nick:</td>    
	<td><input type="text" name="name"></td>
  </tr>
  <tr>
	<td>Your email:</td>    
	<td><input type="text" name="email"></td>
  </tr>
  <tr>
	<td>Subject:</td>    
	<td><input type="text" name="subject"></td>
  </tr> 
</table>
<textarea name="message" rows="10" cols="30" ></textarea><br>
<input type="submit" name="submit" value="Send"><input type="reset" name="reset" value="Reset">
</form>

<?php 
$your_email = "an_alien@eugamer.com"; 
 
if($_POST['submit']) 
{ 
$subject = $_POST['subject']; 
$message = $_POST['message']; 
$name = $_POST['name']; 
$email = $_POST['email']; 
 
 
mail("$your_email","$subject","$message","\n verzonden door: $name \n zijn email: $email"); 
 
echo "bericht verzonden"; 
} 
?>
<form action="eumailer.php" method="post">
<table width="0%"  border="0">
  <tr>
	<td>Your name/nick:</td>    
	<td><input type="text" name="name"></td>
  </tr>
  <tr>
	<td>Your email:</td>    
	<td><input type="text" name="email"></td>
  </tr>
  <tr>
	<td>Subject:</td>    
	<td><input type="text" name="subject"></td>
  </tr> 
</table>
<textarea name="message" rows="10" cols="30" ></textarea><br>
<input type="submit" name="submit" value="Send"><input type="reset" name="reset" value="Reset">
</form>

$header = "From: Dennis <dennisvb@sitemasters.be">\r\n"; // naam + email van afzender
$header .= "Reply-To: reactie@sitemasters.be\r\n"; // reactie naar dit adres sturen
$header .= "MIME-Version: 1.0\r\n";
$header .= "Content-Type: text/html; charset=iso-8859-1\r\n";
$header .= "X-Priority: 3\r\n";
$header .= "X-MSMail-Priority: Normal\r\n";
$header .= "X-Mailer: PHP / ".phpversion()."\r\n";

$header = "From: Dennis <dennisvb@sitemasters.be">\r\n"; // naam + email van afzender
$header .= "Reply-To: reactie@sitemasters.be\r\n"; // reactie naar dit adres sturen
$header .= "MIME-Version: 1.0\r\n";
$header .= "Content-Type: text/html; charset=iso-8859-1\r\n";
$header .= "X-Priority: 3\r\n";
$header .= "X-MSMail-Priority: Normal\r\n";
$header .= "X-Mailer: PHP / ".phpversion()."\r\n";