电子邮件不发送，PHP和SwiftMailer

I have my code

<?php


namespace Spika\Controller;

use Silex\Application;
use Silex\ControllerProviderInterface;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\ParameterBag;

class SendPasswordController extends SpikaBaseController
{
public function connect(Application $app)
{
    $controllers = $app['controllers_factory'];
    $self = $this;

    // check unique controller
    $controllers->get('/resetPassword', function (Request $request) use ($app,$self) {

        $email = $request->get('email');

        $user = $app['spikadb']->findUserByEmail($email);

        if (isset($user['_id'])) {

            $user = $app['spikadb']->findUserById($user['_id'],false);

            $resetCode = $app['spikadb']->addPassworResetRequest($user['_id']);

            $resetPasswordUrl = ROOT_URL . "/page/resetPassword/" . $resetCode;

            $body = "Please reset password here {$resetPasswordUrl}";

            try{

                if(SEND_EMAIL_METHOD == EMAIL_METHOD_LOCALSMTP){

                    $message = \Swift_Message::newInstance()
                        ->setSubject("Spika Reset Password")
                        ->setFrom(AdministratorEmail)
                        ->setTo($user['email'])
                        ->setBody($body);

                    $mailer = \Swift_Mailer::newInstance();

                    $mailer->send($message);

                }

                if(SEND_EMAIL_METHOD == EMAIL_METHOD_GMAIL){

                    $transport = \Swift_SmtpTransport::newInstance('smtp.mandrillapp.com', 587)
                        ->setUsername('me@me.com')
                        ->setPassword('89f7g8dfg8d7fg0');

                    $message = \Swift_Message::newInstance()
                        ->setSubject("Spika Reset Password")
                        ->setFrom(AdministratorEmail)
                        ->setTo($user['email'])
                        ->setBody($body);

                    $mailer = \Swift_Mailer::newInstance($transport);

                    $mailer->send($message);

                }


            } catch(\Exception $e){

            }

            return 'OK';

        }else{

            return $self->returnErrorResponse("invalid email");

        }

        return 'OK';

    });

    return $controllers;
}

}

?>

And I'm using Mandrill along with SwiftMailer. The mail isn't being sent. I'm using this for the code. It looks like there's something called Silex in there. It appears that the script isn't sending them since they do not show up on Mandrill. Any help would be appreciated.