PHPMailer Email not sending

    $resultYes = trim($_POST["result_option_YES"]);
    $resultNo = trim($_POST["result_option_NO"]);

    $transportYes = trim($_POST["transport_option_YES"]);
    $transportNo = trim($_POST["transport_option_NO"]);

    $veggie_option = trim($_POST["veggie_option"]);
    $nutr = trim($_POST["nutr-comment"]);

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



    if ($name == "" OR $email == "") {
        echo "Please enter your name and email!";
        exit;
    }

    foreach( $_POST as $value) {
        if (stripos($value, 'content-type:') !==False){
            echo "There was a problem with the info you provided.";
            exit;
        }
    }

    if ($_POST["address"] !=="") {
        echo "Your form has an error";
        exit;
    }

    require_once("inc/phpmailer/class.phpmailer.php");
    $mail = new PHPMailer();

    if (!$mail->ValidateAddress($email)){
        echo "You must specify a valid email address.";
        exit;
    }


    $email_body = "";
    $email_body = $email_body . "Name: " . $name . "<br>";
    $email_body = $email_body . "Email: " . $email . "<br>";
    $email_body = $email_body . "Attending: " . $resultYes . $resultNo . "<br>";
    $email_body = $email_body . "Transport: " . $transportYes . $transportNo . "<br>";
    $email_body = $email_body . "Veggie: " . $veggie_option . "<br>";
    $email_body = $email_body . "Nutritional Info.: " . $nutr . "<br>";
    $email_body = $email_body . "Comments: " . $comments;


    $mail->SetFrom($email, $name);
    $address = "joeli1989@gmail.com";
    $mail->AddAddress($address, "Joe Li");
    $mail->Subject    = "RSVP Form | " . $name;
    $mail->MsgHTML($email_body);

    if(!$mail->Send()) {
      echo "There was a problem sending the form.: " . $mail->ErrorInfo;
      exit;
    } 

    header("Location: rsvp.php?status=thanks");

    exit;

    }

<div id="thanks" class="grid_12 omega">
        <h1>Thank You!</h1>
        <p>We have now received your RSVP. You&rsquo;re all done!</p>
</div>

<div class="insideDiv">
    <div id="intro" class="grid_12 omega">
    <h1>We thought we would make life easier for you. Please just fill out the form below and that'll be your RSVP done. If you're a family, please put all the names of everyone attending in the "Name's" section.</h1>
    </div>

    <div id="rsvp" class="grid_12 omega">

         <form method="POST" action="rsvp.php" name="contact-us">


            <legend id="dinner_text">RSVP Form</legend><br>

            <p class="grid_12 omega">
                <label for="name">Name's:</label><br>
                <input type="text" name="name" id="name" class="required">
                <span>Please enter all names of your party.</span>
            </p>

            <p class="grid_12 omega">
                <label for="email">Email Address:</label><br>
                <input type="text" name="email" id="email" class="required">
                <span>Please enter a valid email.</span>
            </p>

            <p class="grid_12 omega">
                <label for="result"> Will you be attending our wedding? </label><br><br>
                <input type="radio" name="result_option_YES" value="result_option_YES" id="result" class="required"> Yes <br><br>
                <input type="radio" name="result_option_NO" value="result_option_NO" id="result" class="required"> No <br>
            </p>

            <p class="grid_12 omega">   
                <label for="transport"> Will you require transport form the chapel to the reception? </label><br><br>
                <input type="radio" name="transport_option_YES" value="transport_option_YES" id="transport"> Yes <br><br>
                <input type="radio" name="transport_option_NO" value="transport_option_NO" id="transport"> No <br>
            </p>

            <div id="nutr" class="grid_6">
                <p>
                    <label for="veggie">Please select if you require the veggie option instead of the beef for your main course?</label><br><br>
                    <input type="radio" name="veggie_option" value="veggie_option" id="veggie"> Veggie Option 
                    <p class="nutr">
                    <label for="nutr-comment">Further Nutritional Info.</label><br>
                    <textarea name="nutr-comment" rows="10" cols="30" id="nutr-comment"></textarea>
                </p>

            </div>

            <div class="grid_6 omega"><img src="img/rudeveggie.png"></div>

                <p id="comments_a">
                    <label for="comments">Comments</label><br>
                    <textarea name="comments" rows="10" cols="30" id="comments"></textarea><br>
                </p>
                <p> 
                    <input id="rsvp_btn" type="submit" value="Send" enabled="disabled"><br>
                </p>


                <p class="grid_12 omega" style="display: none; ">
                    <label for="address">Address</label><br>
                    <input type="text" name="address" id="address">
                    <span>Please enter all names of your party.</span>
                </p>

        </form>

    </div>
</div>