title: Digital Ocean and GMAIL smtp server give error
body: <p>I am using <strong>Symfony2</strong> on <strong>Digital Ocean Ubuntu 12.04.5 LTS</strong> (GNU/Linux 3.2.0-24-virtual i686).
  <em>Everything is working on my localhost</em>, but <em>do not work on Digital Ocean Server</em>, 
  Here is error message when I try to register user in my web with Activation Email enabled :</p>
  
  <pre><code>Connection could not be established with host smtp.gmail.com [Connection timed out #110]
  500 Internal Server Error - Swift_TransportException 
  </code></pre>
  
  <p>and error stacktrace :</p>
  
  <pre><code>    $this-&gt;_stream = @stream_socket_client($host.':'.$this-&gt;_params['port'], $errno, $errstr, $timeout, STREAM_CLIENT_CONNECT, stream_context_create($options));
      if (false === $this-&gt;_stream) {
          throw new Swift_TransportException(
              'Connection could not be established with host '.$this-&gt;_params['host'].
              ' ['.$errstr.' #'.$errno.']'
              );
  </code></pre>
  
  <p>Output from server terminal :</p>
  
  <pre><code>yusuf@xwzxc:~$ telnet smtp.gmail.com 465
  Trying 74.125.130.108...
  Trying 74.125.130.109...
  Trying 2404:6800:4003:c01::6c...
  telnet: Unable to connect to remote host: Network is unreachable
  </code></pre>
  
  <p>any help will be greatly appreciated.</p>
  
  <p><strong>Thanks</strong></p>