function send_contact_mail($data)
{
    $data = array(
        'firstName' => $data['firstName'],
        'lastName'  => $data['lastName'],
        'callName'  => $data['callName'],
        'email'     => $data['email'],
        'comment'   => $data['comment'],
    );


    $template = Timber::compile('templates/mail/contact_mail.twig', $data);

    $mail = new PHPMailer;                        // Enable verbose debug output

    $mail->isSMTP();                                      // Set mailer to use SMTP
    //TODO change smtp server
//    $mail->Host = 'smtp1.example.com;smtp2.example.com';  // Specify main and backup SMTP servers
//    $mail->SMTPAuth = true;                               // Enable SMTP authentication
//    $mail->Username = 'user@example.com';                 // SMTP username
//    $mail->Password = 'secret';                           // SMTP password
//    $mail->SMTPSecure = 'tls';                            // Enable TLS encryption, `ssl` also accepted
//    $mail->Port = 587;                                    // TCP port to connect to

    $mail->Host = 'smtp.gmail.com';
    $mail->Port = 587;
    $mail->SMTPSecure = 'tls';
    $mail->SMTPAuth = true;
    $mail->Username = "testschool4us@gmail.com";
    $mail->Password = "school4ustest";

    $mail->setFrom($data['email'], $data['firstName'] .' '. $data['lastName']);
    $mail->addAddress('janmoes96@live.nl', 'School4us');     // Add a recipient
//    $mail->addAddress('janmoes96@live.nl', 'School4us');     // Add a recipient
    $mail->addReplyTo($data['email'], 'Contact');
//    $mail->addCC('cc@example.com');
//    $mail->addBCC('bcc@example.com');

//    $mail->addAttachment('/var/tmp/file.tar.gz');         // Add attachments
//    $mail->addAttachment('/tmp/image.jpg', 'new.jpg');    // Optional name
    $mail->isHTML(true);                                  // Set email format to HTML

    $mail->Subject = 'Contact aanvraag';
    $mail->Body = $template;
    $mail->AltBody = $template; //$mail->AltBody = $template; //

    if (!$mail->send()) {
        echo 'Message could not be sent.';
        echo 'Mailer Error: ' . $mail->ErrorInfo;
    }
}