set swiftmailer in symfony2

hello everybody I’ll really appreciate your help on this as I’m trying to sent a simple email and I can not

here is my config.yml <pre> swiftmailer: transport: sendmail host: /usr/bin/sendmail username: %mailer_user% password: %mailer_password% spool: type: file path: “%kernel.cache_dir%/swiftmailer/spool” </pre> I see the emails keep on spool and they are never released

Event after enter this command in console php app/console swiftmailer:spool:send --env=prod

/for more details here is my controller code/ <pre> $message = \Swift_Message::newInstance() //->attach($attachment) ->setContentType(“text/html”) ->setSubject(‘Hello Email’) ->setFrom(‘send@example.com’) ->setTo(‘schell.daniel@gmail.com’) ->setBody( $this->renderView( ‘MasEventosSICBundle:Welcome:registration.html.twig’, array(‘name’ => $name) ) ) ; $this->get(‘mailer’)->send($message);
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This does not throw any exception but the emails are not sent I think my knowledge is not enough to see the cause Thanks a lot in advance Cheers