I can't get PHPMailer to work

After watching Randy's video on PHPMailer I have tried everything I could think of to get it to work. Someone on here recommended trying Mandrill for your mail server, and I have tried that also without any luck. Can someone help me? Here is the code with the username and password omitted.

<?php if ($_SERVER["REQUEST_METHOD"] == "POST") { $name = trim($_POST["name"]); $email = trim($_POST["email"]); $message = trim($_POST["message"]);

if($name == "" OR $email == "" OR $message == ""){
    echo "You must specify a value for name, email address, and message.";
    exit;
}



foreach ($_POST as $value){
    if(stripos($value, 'Content-Type:') !== FALSE){
        echo "There was a problem with the information you entered.";
        exit;
    }
}


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

$email_body = "";
$email_body = $email_body . "Name: " . $name . "<br>";
$email_body = $email_body . "Email: " . $email . "<br>";
$email_body = $email_body . "Message: " . $message . "<br>";

require 'inc/phpmailer/class.phpmailer.php';

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

$mail->isSMTP(); $mail->SMTPDebug = 0; $mail->Debugoutput = 'html'; $mail->Host = "smtp.mandrillapp.com"; $mail->Port = 587; $mail->SMTPAuth = true; $mail->Username = "xxxx@xxxxxxxxx.co"; $mail->Password = "xxxxxxxxxxxxxxxxxxxx"; $mail->setFrom(xxxxxx@xxxxxxxxxxxxxx.co', 'Awaken Studio'); $mail->addAddress(xxxxxx@xxxxxxxxxxxxxx.co', 'Awaken Studio'); $mail->Subject = 'PHPMailer SMTP test'; $mail->AltBody = $email_body; if (!$mail->send()) { echo "Mailer Error: " . $mail->ErrorInfo; } else { echo "Message sent!"; } ?>