Server 2012 IIS 8 SMTP

I need a php form to send mail from a contact form.  I have the forms, and I have tried setting up SMTP service on 2012 R2.  I have had no joy.  Is there a chance someone has a walk through so I could find the likely one check box I have missed along the way?

<!-- Contact Form -->
                                          <form method="post" action="mail.php">
                                                <div class="row 50%">
                                                      <div class="6u 12u(mobile)"><input type="text" name="name" placeholder="Name" /></div>
                                                      <div class="6u 12u(mobile)"><input type="email" name="email" placeholder="Email" /></div>
                                                </div>
                                                <div class="row 50%">
                                                      <div class="12u"><textarea name="message" placeholder="Message" rows="6"></textarea></div>
                                                </div>
                                                <div class="row">
                                                      <div class="12u">
                                                            <ul class="actions">
                                                                  <li><input type="submit" value="Send Message" /></li>
                                                            </ul>
                                                      </div>
                                                </div>
                                          </form>



Mail.php
<?php
$name = $_POST['name'];
$email = $_POST['email'];
$message = $_POST['message'];
$formcontent="From: $name \n Message: $message";
$recipient = "randy@raceaz.com";
$subject = "Contact Form";
$mailheader = "From: $email \r\n";
mail($recipient, $subject, $formcontent, $mailheader) or die("C'mon ya Dummy, figure it out - Error!");
echo "Thank You!";
?>