title: SwiftMailer connection established error
body: <p>I have problem with sending mails. I using SwiftMailer 5.1.0 and account on gmail, smtp port 465 and openssl is enable, but I have this error:</p>
  
  <pre><code>Serwer: smtp.gmail.com:465 ssl
  From: BizIn - system mailowy &lt;isystemnew.pcet@gmail.com&gt;
  To: test7771@test.pl
  Mail debug: Connection could not be established with host smtp.gmail.com [ #0] 
  </code></pre>
  
  <p>At my localhost everything is okey and mails are send. But on serwer I have error. </p>
  
  <p>Localhost using PHP in version 5.4.31, but at server is 5.6.0. </p>