php mail

<?php
if (isset($_POST['submit'])){
if(!empty($_POST['name'] && $_POST['email'])){
$name = $_POST['name'];
$mail = $_POST['email'];
$sub = $_POST['subject'];
$message = $_POST['message'];
$to = "[email protected]";
$subject = "New Inquiry From AquaNow";
$body = "New Client Leave a message"."\n"."\n"."Name: ".$name."\n"."e-mail: ".$mail."\n"."subject: ".$sub."\n"."message: ".$message;
mail ($to,$subject,$body);
header('Location: contact2.html');}
}
?>



<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>AquaNow
    </title>
    <link rel="icon" href="img/logo.png" type="image/x-icon" />


    <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Poppins:400,500,700">
    <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.3.1/css/all.css" integrity="sha384-mzrmE5qonljUremFsqc01SB46JvROS7bZs3IO2EmfFsd15uHvIt+Y8vEf7N7fWAU" crossorigin="anonymous">
    <link rel="stylesheet" href="css/styles-merged.css">
    <link rel="stylesheet" href="css/style.css">

    <!--[if lt IE 9]>
      <script src="js/vendor/html5shiv.min.js"></script>
      <script src="js/vendor/respond.min.js"></script>
    <![endif]-->
  </head>
  <body style="background-color: #fff;">

    <!-- Fixed navbar -->


    <nav class="navbar navbar-default navbar-fixed-top probootstrap-navbar">
      <div class="container">
        <div class="navbar-header">
          <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar-collapse" aria-expanded="false" aria-controls="navbar">
            <span class="sr-only">Toggle navigation</span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
          </button>
          <a class="navbar-brand" href="index.html" title="uiCookies:Stack">Stack</a>
        </div>

        <div id="navbar-collapse" class="navbar-collapse collapse">
          <ul class="nav navbar-nav navbar-right">
            <li><a style="color: black" href="index.html">HOME</a></li>
            <li><a style="color: black" href="index.html#vision">VISION</a></li>
            <li><a style="color: black" href="index.html#product">PRODUCT</a></li>
            <li><a style="color: black" href="index.html#team">TEAM</a></li>
            <li><a style="color: black" href="contact.html">CONTACT</a></li>

          </ul>
        </div>
      </div>
    </nav>




    <section style="margin-top: 20px" class="probootstrap-section probootstrap-bg-white">
      <div class="container">
        <div class="row">
          <div class="col-md-5 probootstrap-animate" data-animate-effect="fadeIn">

            <form action="sentmail.php" method="post" class="probootstrap-form">
              <div class="form-group">
                <label for="name">Full Name</label>
                <input type="text" class="form-control" id="name" name="name" required="required">
              </div>
              <div class="form-group">
                <label for="email">Email</label>
                <input type="email" class="form-control" id="email" name="email" required="required">
              </div>
              <div class="form-group">
                <label for="subject">Subject</label>
                <input type="text" class="form-control" id="subject" name="subject" required="required">
              </div>
              <div class="form-group">
                <label for="message">Message</label>
                <textarea cols="30" rows="10" class="form-control" id="message" name="message"></textarea>
              </div>
              <div class="form-group">
                <input type="submit" class="btn btn-primary btn-lg" id="submit" name="submit" value="SEND">
              </div>
            </form>
          </div>
          <div class="col-md-6 col-md-push-1 probootstrap-animate" data-animate-effect="fadeIn">

            <p>We exist to provide best-in-class execution platform and institutional-quality trading solutions for everyone via a single point of access across disparate exchanges and marketplaces.</p>

            <h4>CANADA</h4>
            <ul class="probootstrap-contact-info">
              <h5>CLTS Technologies Ltd.</h5>
              <li><i class="icon-pin"></i> <span>422 Richards St, Suite 170 <br>Vancouver, BC, V6B 2Z4 </span></li>
              <li><i class="icon-email"></i><span>[email protected]</span></li>

            </ul>
          </div>
        </div>
      </div>
    </section>

    <footer class="probootstrap-footer">
      <div class="container">
        <div class="row">
          <div class="col-md-3">
            <div style="padding: 20px 0px" class="probootstrap-footer-widget">
              <style>
                @media screen and (max-width: 768px) {
                 .probootstrap-footer-widget img{
                  display: block;
                  margin: auto;
                  width: 50%;
                }
              }
              </style>
              <img src="img/logo.png" alt="" width="70%">
            </div>
          </div>
          <div class="col-md-6">
            <div class="probootstrap-footer-widget">
              <h3>ABOUT AQUANOW</h3>
              <p>We are neither a crypto exchange, OTC desk, proprietary trading shop, nor dark pool. Because our business model does not conflict with client’s interests, we are in a best position to create sustainable, value-added, long-term partnerships with our clients in the digital asset market.</p>
              <p>Email / <span style="color: #b79b45">[email protected]</span></p>
              <ul class="probootstrap-footer-social">

                <li><a href="https://www.linkedin.com/company/crypto-liquidity-solutions/
                  " target="_blank"><span style="color: #b79b45"><i class="icon-linkedin"></i></span></a></li>
                   <li><a href="https://twitter.com/LiquidityCrypto" target="_blank"><span style="color: #b79b45"><i class="icon-twitter"></i></span></a></li>


              </ul>

            </div>
          </div>

          <div class="col-md-3">

                <div class="probootstrap-footer-widget">
                  <h3>LEGAL</h3>
                  <p>Copyright © 2018 | All Rights Reserved.
                    CLTS Technologies Ltd.
                    </p>
                  <ul>

                    <li><a href="privacy.html"><span style="color: #b79b45">Privacy Policy</span></a></li>
                  </ul>
                </div>


          </div>


        </div>
        <!-- END row -->

      </div>
    </footer>

    <script src="js/scripts.min.js"></script>
    <script src="js/custom.min.js"></script>

  </body>
</html>