Symfony2 Symblog tutorial swift mail not getting email icon in developer bar

Question

i am following this tutorial:

http://tutorial.symblog.co.uk/docs/validators-and-forms.html

at the swift mailer part i am not getting the envelope icon in the developer bar. i am following the tutorial on my dev box so it wont send the actual email therefore i must get the envelope?

here my app/config/parameters.ini:

mailer_transport  = "gmail"
mailer_encryption = "ssl"
mailer_auth_mode =  "login"
mailer_host       = "smtp.gmail.com"
mailer_user       = "myemail@host.net"
mailer_password   = "mypassword"

then i have src/Blogger/BlogBundle/Controller/PageController.php:

public function contactAction()
{
   #return $this->render('BloggerBlogBundle:Page:contact.html.twig');
   $enquiry = new Enquiry();
   $form = $this->createForm(new EnquiryType(), $enquiry);

   $request = $this->getRequest();
   if ($request->getMethod() == 'POST')
   {
       $form->bindRequest($request);

       if ($form->isValid())
       {
         // Perform some action, such as sending an email
         $message = \Swift_Message::newInstance()
        ->setSubject('Contact enquiry from symblog')
        ->setFrom('enquiries@symblog.co.uk')
        ->setTo($this->container->getParameter('blogger_blog.emails.contact_email'))
        ->setBody($this->renderView('BloggerBlogBundle:Page:contactEmail.txt.twig', array('enquiry' => $enquiry)));
        $this->get('mailer')->send($message);

        $this->get('session')->setFlash('blogger-notice', 'Your contact enquiry was successfully sent. Thank you!');


         // Redirect - This is important to prevent users re-posting
         // the form if they refresh the page
         return $this->redirect($this->generateUrl('BloggerBlogBundle_contact'));
       }
    }


return $this->render('BloggerBlogBundle:Page:contact.html.twig', array(
    'form' => $form->createView()
));

after this i have everything like they have it,what am i missing? please help? thanks