title: Confirmation email not sent FOSUserBundle Symfony
body: <p>I just installed the FOSUserbundle and I want to have the e-mail confirmation enabled. Meaning if someone registers the user should get an email with an activation link.</p>
  
  <p>Here is the config.yml file:</p>
  
  <pre><code>fos_user:
  db_driver:     orm
  firewall_name: main
  user_class: Project\UserBundle\Entity\User
  service:
      mailer: fos_user.mailer.twig_swift
  group:
      group_class: Project\UserBundle\Entity\Group
  profile:
      form:
          type: project_user_profile
  registration:
      form:
          type: project_user_registration
      confirmation:
          enabled: true
          #template: FOSUserBundle:Registration:email.txt.twig
          from_email:
              address:     zairi.ibrahim@gmail.com
              sender_name: Simlinx User Registration
  </code></pre>
  
  <p>And </p>
  
  <pre><code># Swiftmailer Configuration
  swiftmailer:
  transport: %mailer_transport%
  encryption: %mailer_encryption%
  host:      %mailer_host%
  username:  %mailer_user%
  password:  %mailer_password%
  spool:     { type: memory } 
  </code></pre>
  
  <p>And parameters.yml :</p>
  
  <pre><code>mailer_transport:  gmail
  mailer_encryption: ssl
  mailer_host:       ~
  mailer_user:       zairi.ibrahim
  mailer_password:   xxxxxxxxxxxx
  </code></pre>
  
  <p>It works in the first time, but now it does not work anymore !!</p>
  
  <p>Thnks</p>