title: swiftmailer completely broken for smtp?
body: <p>Just updated my swiftmailer checkout to the latest version 4.3.0.  The following VERY simple code no longer works, and the connection times out:</p>
  
  <pre><code>&lt;? 
  require_once 'Swift-4.3.0/lib/swift_required.php';
  
  $transport = Swift_SmtpTransport::newInstance('email-smtp.us-east-1.amazonaws.com',465, 'tls')
    -&gt;setUsername('USERNAME')
    -&gt;setPassword('PASSWORD')
    ;
  $mailer = Swift_Mailer::newInstance($transport);
  
  // Create a message
  $message = Swift_Message::newInstance('Yo')
    -&gt;setFrom(array('jnankin@gmail.com' =&gt; 'Josh'))
    -&gt;setTo(array('jnankin@gmail.com'))
    -&gt;setBody('Here is the message itself')
    ;
  
  $result = $mailer-&gt;send($message);
  </code></pre>
  
  <p>I then get the following:</p>
  
  <pre><code>PHP Fatal error:  Uncaught exception 'Swift_IoException' with message 'Connection to tcp://email-smtp.us-east-1.amazonaws.com:465 Timed Out' in /home/jnankin/Desktop/Swift-4.3.0/lib/classes/Swift/Transport/StreamBuffer.php:169
  Stack trace:
  #0 /home/jnankin/Desktop/Swift-4.3.0/lib/classes/Swift/Transport/AbstractSmtpTransport.php(400): Swift_Transport_StreamBuffer-&gt;readLine(0)
  #1 /home/jnankin/Desktop/Swift-4.3.0/lib/classes/Swift/Transport/AbstractSmtpTransport.php(291): Swift_Transport_AbstractSmtpTransport-&gt;_getFullResponse(0)
  #2 /home/jnankin/Desktop/Swift-4.3.0/lib/classes/Swift/Transport/AbstractSmtpTransport.php(119): Swift_Transport_AbstractSmtpTransport-&gt;_readGreeting()
  #3 /home/jnankin/Desktop/Swift-4.3.0/lib/classes/Swift/Mailer.php(80): Swift_Transport_AbstractSmtpTransport-&gt;start()
  #4 /home/jnankin/Desktop/email.php(17): Swift_Mailer-&gt;send(Object(Swift_Message))
  #5 {main}
    thrown in /home/jnankin/Desktop/Swift-4.3.0/lib/classes/Swift/Transport/StreamBuffer.php on line 169
  </code></pre>
  
  <p><strong>UPDATE:</strong> This exact same code (without any changes whatsoever) works in version 4.1.2.  Version 4.1.3 this no longer works.  I've tried different SMTP servers: mailgun, sendgrid, etc... this seems swiftmailer specific.</p>