Issue with sending email from the form PhP

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/class.phpmailer.php');      

$mail = new PHPMailer();

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

$mail->IsSMTP(); // telling the class to use SMTP

$mail->Host       = "smtp.gmail.com"; // SMTP server

$mail->SMTPDebug  = 2;                     // enables SMTP debug information (for testing)

// 1 = errors and messages

// 2 = messages only

$mail->SMTPAuth   = true;                  // enable SMTP authentication

$mail->SMTPSecure = "tls";                 // sets the prefix to the servier

$mail->Host       = "smtp.gmail.com";      // sets GMAIL as the SMTP server

$mail->Port       = 465;                   // set the SMTP port for the GMAIL server

$mail->Username   = "My Email";  // GMAIL username

$mail->Password   = "My Email Password";        

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

$mail->SetFrom($email, $name);
$address = "my email";
$mail->AddAddress($address, "Lion");
$mail->Subject    = "Lion Form | " . $name;
$mail->MsgHTML($email_body);

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