Hi! My email field is returning a blank string, regardless of what I do. I'm not sure how to resolve this. Any ideas?

<?php 
$name = $_POST["name"];
$email = $_POST["email"];
$details = $_POST["details"];

var_dump($name, $email, $details);

include('inc/header.php'); ?>

<div class="section page">
  <div class="wrapper">
    <h1>Suggest a Media Item</h1>
    <?php if (isset($_GET["status"]) && $_GET["status"] == "thanks") {
       echo "<p>Thanks for your e-mail! I&rsaquo;ll check out your suggestion shortly.</p>";
      } else { ?>
    <p>If you think there is something I&rsquo;m missing, let me know! Complete the form to send me an email.</p>
    <form method="post" action="suggest.php">
      <table>
        <tr>
          <th><label for="name">Name</label></th>
          <td><input type="text" id="name" name="name" /></td>
        </tr>
        <tr>
            <th><label for="email">Email</label></th>
            <td><input type="text" id="email" name="email" /></td>
        </tr>
        <tr>
          <th><label for="details">Details</label></th>
          <td><textarea name="details" id="details"></textarea></td>
        </tr> 
        <tr style="display:none">
          <th><label for="address">Address</label></th>
          <td><input type="text" id="email" name="email" /></td>
          <p>Please leave this field blank.</p>
        </tr>      
       </table>
      <input type="submit" value="Send" />
    </form>
    <?php } ?>
  </div>
</div>