Не отправляется вложение в письме

<form enctype="multipart/form-data" method="post" action="contact.php" name="contactform" id="contactform">               
                <div class="one_half element_from_left">            
                    <input name="name" type="text" id="name" size="30" placeholder="Имя">
                    <input name="email" type="text" id="email" size="30" placeholder="Почта">                
                    <input name="phone" type="text" id="phone" size="30" placeholder="Телефон">
					<input type="file" name="filet" accept="*/*" id="file_send">
                </div>                
                <div class="one_half last element_from_right">            
                    <textarea name="comments" cols="40" rows="4" id="comments" placeholder="Сообщение"></textarea>            
                </div>                            
                <input type="submit" class="send_message" id="submit" value="Отправить сообщение" />
                </form>

if(!$_POST) exit;

// Email address verification, do not edit.
function isEmail($email) {
	return(preg_match("/^[-_.[:alnum:]]+@((([[:alnum:]]|[[:alnum:]][[:alnum:]-]*[[:alnum:]])\.)+(ad|ae|aero|af|ag|ai|al|am|an|ao|aq|ar|arpa|as|at|au|aw|az|ba|bb|bd|be|bf|bg|bh|bi|biz|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|com|coop|cr|cs|cu|cv|cx|cy|cz|de|dj|dk|dm|do|dz|ec|edu|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gh|gi|gl|gm|gn|gov|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|in|info|int|io|iq|ir|is|it|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|me|mg|mh|mil|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|museum|mv|mw|mx|my|mz|na|name|nc|ne|net|nf|ng|ni|nl|no|np|nr|nt|nu|nz|om|org|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|pro|ps|pt|pw|py|qa|re|ro|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|um|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|yu|za|zm|zw)$|(([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5])\.){3}([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5]))$/i",$email));
}

if (!defined("PHP_EOL")) define("PHP_EOL", "\r\n");

$name     = $_POST['name'];
$email    = $_POST['email'];
//$email    = 'mail@вывески-омск.рф';
$phone   = $_POST['phone'];
$comments = $_POST['comments'];


if(trim($name) == '') {
	echo '<div class="error_message">Внимание! Введите своё имя</div>';
	exit();
} else if(trim($email) == '') {
	echo '<div class="error_message">Внимание! Введите свою почту</div>';
	exit();
} else if(trim($phone) == '') {
	echo '<div class="error_message">Внимание! Введите свой телефон</div>';
	exit();
} else if(!is_numeric($phone)) {
	echo '<div class="error_message">Внимание! Телефон может содержать только цифры.</div>';
	exit();
} else if(!isEmail($email)) {
	echo '<div class="error_message">Внимание! Вы ввели неверный адрес электронной почты, попробуйте еще раз</div>';
	exit();
} else if(trim($comments) == '') {
	echo '<div class="error_message">Внимание! Пожалуйста, введите ваше сообщение.</div>';
	exit();
} 

if(get_magic_quotes_gpc()) {
	$comments = stripslashes($comments);
}


// Configuration option.
// Enter the email address that you want to emails to be sent to.
// Example $address = "[email protected]";



//$address = "[email protected]";
$address = "[email protected]";

// Configuration option.
// i.e. The standard subject will appear as, "You've been contacted by John Doe."

// Example, $e_subject = '$name . ' has contacted you via Your Website.';

$e_subject = 'Вы получили письмо от ' . $name . '.';


// Configuration option.
// You can change this if you feel that you need to.
// Developers, you may wish to add more fields to the form, in which case you must be sure to add them here.

$e_body = "Имя: $name" . PHP_EOL . PHP_EOL;
$e_reply = "Почта: $email\r\nТелефон: $phone\r\n";
$e_content = "\r\nСообщение: $comments" . PHP_EOL . PHP_EOL;


$msg = $e_body . $e_reply . $e_content;

$headers = "From: $email" . PHP_EOL;
$headers .= "Reply-To: $email" . PHP_EOL;
//$headers .= "MIME-Version: 1.0" . PHP_EOL;
//$headers .="Content-Type: multipart/mixed; boundary=\"".$boundary."\"\r\n"; 
//$headers .= "Content-type: text/plain; charset=utf-8" . PHP_EOL;
//$headers .= "Content-Transfer-Encoding: quoted-printable" . PHP_EOL;

//if (isset($_FILES["filet"]["tmp_name"])) {

$attachment = chunk_split(base64_encode(file_get_contents($_FILES["filet"]["tmp_name"])));
$filename = $_FILES["filet"]["name"];
$filetype = $_FILES["filet"]["type"];

$boundary = md5(date("r", time()));

$headers .= "MIME-Version: 1.0\r\n";
$headers .= "Content-Type: multipart/mixed; boundary=\"_1_$boundary\"";
$msg="
--_1_$boundary
Content-Type: multipart/alternative; boundary=\"_2_$boundary\"
--_2_$boundary
Content-Type: text/plain; charset=\"utf-8\"
Content-Transfer-Encoding: 7bit
$msg
--_2_$boundary--
--_1_$boundary
Content-Type: \"$filetype\"; name=\"$filename\"
Content-Transfer-Encoding: base64
Content-Disposition: attachment
$attachment
--_1_$boundary--";
//}

if(mail($address, $e_subject, $msg, $headers)) {
	// Email has sent successfully, echo a success page.
	echo "<fieldset>";
	echo "<div id='success_page'>";
	echo "<h1>Ваше письмо успешно отправлено.</h1>";
	echo "<p>Спасибо <strong>$name</strong>, Мы ответим вам в ближайшее время</p>";
    echo "<pre>";
       print_r($_FILES["filet"]);
    echo "</pre>";
	echo "</div>";
	echo "</fieldset>";
} else {
	echo 'Ошибка отправки почты!';
}