Пустые письма от сайта

<?php

header('Content-Type: text/html; charset=utf-8');

$method = $_SERVER['REQUEST_METHOD'];

//Script Foreach

$c = true;

if ( $method === 'POST' ) {

    $project_name = "tAdena";

    $admin_email  = "support@adenasrvc.ru";

    $form_subject = trim($_POST["form_subject"]);

    foreach ( $_POST as $key => $value ) {

        if ($key != "project_name" && $key != "admin_email" && $key != "form_subject" ) {

            $message .= "

            " . ( ($c = !$c) ? '<tr>':'<tr style="background-color: #f8f8f8;">' ) . "

            <td style='padding: 10px; border: #e9e9e9 1px solid;'><b>$key</b></td>

            <td style='padding: 10px; border: #e9e9e9 1px solid;'>$value</td>

            </tr>

            ";

        }

    }

}

else if ( $method === 'GET' ) {

    $project_name = trim($_GET["project_name"]);
if (isset($_GET["admin_email"])){
    $admin_email = trim($_GET["admin_email"]);
} else {
    $admin_email = "support@adenasrvc.ru";
}
    $form_subject = trim($_GET["form_subject"]);

    foreach ( $_GET as $key => $value ) {

        if ( $value != "" && $key != "project_name" && $key != "admin_email" && $key != "form_subject" ) {

            $message .= "

            " . ( ($c = !$c) ? '<tr>':'<tr style="background-color: #f8f8f8;">' ) . "

            <td style='padding: 10px; border: #e9e9e9 1px solid;'><b>$key</b></td>

            <td style='padding: 10px; border: #e9e9e9 1px solid;'>$value</td>

            </tr>

            ";

        }

    }

}

$message = "<table style='width: 100%;'>$message</table>";

mail($admin_email, $form_subject, $message, "From: $project_name <$admin_email>" . "\r\n" . "Reply-To: $admin_email" . "\r\n" . "X-Mailer: PHP/" . phpversion() . "\r\n" . "Content-type: text/html; charset=\"utf-8\"");