ezt kibrolátam hiba nálkül elmegy de nem érkezik meg semmi:(

<?php
 
// request variables
$from=$_REQUEST["from"];
$emaila=$_REQUEST["emaila"];
$filea=$_REQUEST["filea"];
 
if ($filea)
{
function mail_attachment ($from , $to, $subject, $message, $attachment){
    $fileatt = $attachment; // Path to the file
    $fileatt_type = "application/octet-stream"; // File Type
    $start=    strrpos($attachment, '/') == -1 ? strrpos($attachment, '//') : strrpos($attachment, '/')+1;
    $fileatt_name = substr($attachment, $start, strlen($attachment)); // Filename that will be used for the file as the attachment
 
    $email_from = $from; // Who the email is from
    $subject = "New Attachment Message";
    $email_subject =  $subject; // The Subject of the email
    $email_txt = $message; // Message that the email has in it
 
    $email_to = $to; // Who the email is to
 
    $headers = "From: ".$email_from;
 
    $file = fopen($fileatt,'rb');
    $data = fread($file,filesize($fileatt));
    fclose($file);
    $msg_txt="nn You have recieved a new attachment message from $from";
    $semi_rand = md5(time());
    $mime_boundary = "==Multipart_Boundary_x{$semi_rand}x";
    $headers .= "nMIME-Version: 1.0n" .
            "Content-Type: multipart/mixed;n" .
            " boundary="{$mime_boundary}"";
    $email_txt .= $msg_txt;
    $email_message .= "This is a multi-part message in MIME format.nn" .
                "--{$mime_boundary}n" .
                "Content-Type:text/html; charset="iso-8859-1"n" .
               "Content-Transfer-Encoding: 7bitnn" .
    $email_txt . "nn";
    $data = chunk_split(base64_encode($data));
    $email_message .= "--{$mime_boundary}n" .
                  "Content-Type: {$fileatt_type};n" .
                  " name="{$fileatt_name}"n" .
                  //"Content-Disposition: attachment;n" .
                  //" filename="{$fileatt_name}"n" .
                  "Content-Transfer-Encoding: base64nn" .
                 $data . "nn" .
                  "--{$mime_boundary}--n";
 
    $ok = mail($email_to, $email_subject, $email_message, $headers);
 
    if($ok)
    {
    echo "File Sent Successfully.";
    unlink($attachment); // delete a file after attachment sent.
    }
    else
    {
        die("Sorry but the email could not be sent. Please go back and try again!");
    }
}
 
move_uploaded_file($_FILES["filea"]["tmp_name"],'uploads/'.basename($_FILES['filea']['name']));
mail_attachment("system@szitibutor.hu", $subject, $message, $from, ("uploads/".$_FILES["filea"]["name"]));


}

header("Location: http://www.szitibutor.hu/koszonjuk.html");
?>