PHP邮件表单-只有一个变量未提交

我已经设置了一个PHP邮件表单设置，它只正确输出表单中输入的一些变量。它确实会发送$name和$email变量，但不会发送$message变量。

发送表单的php在这里：

<?php
if($_SERVER["REQUEST_METHOD"] == "POST" ){

$name = trim($_POST["name"]);
$email = trim($_POST["email"]);
$message = trim($_POST["message"]);
      //sending email
      require_once("siteIncludes/class.phpmailer.php");
      $mail = new PHPMailer();
$email_body = "";
$email_body = $email_body . "Name: " . $name . $message . "<br />";
$email_body = $email_body . "Email: " . $email . "<br />";
$email_body = $email_body . "Message: " . $message; 
    $mail->SetFrom("$email,$name");
    $address = "foo@bar.com";
    $mail->AddAddress($address);
    $mail->Subject = "Form Submission | ".$name;
    $mail->MsgHTML($email_body);
      if(!$mail->Send() ){
        echo 'There was a problem sending the email: '.$mail->ErrorInfo;
        exit();
      } 
    header("Location: myContact.php?status=thanks");
    exit();
};
?>

设置表单的HTML在这里：

    <div id="contactFormWrap" class="span6 offset3">        
      <form method="post" action="myContact.php" id="contactForm">
          <div>
            <label for="name">Please leave your name</label>
            <input type="text" name="name" id="name" value="" class="required" />
          </div>
          <div>
            <label for="email">and your email</label>
            <input type="text" name="email" id="email" value="" class="required email" />
          </div> 
          <div>
            <label for="subject">What is your message about?</label>
            <input type="text" name="subject" id="subject" value="" class="required" />
          </div> -->
          <div>
            <label for="message">and your message</label>
            <textarea name="message" id="message" value="" rows="10" class="required"></textarea>
          </div>
          <div id="messageButtons">
          <input type="submit" value="Submit" name="contactSubmit" id="contactSubmit" class="sendEmail btn" />
        </div>
      </form>
    </div>

我希望这是足够的信息。有人知道为什么$message变量没有输出到提交的电子邮件中吗？

感谢