title: Using Swiftmailer without a framework
body: <p>I am wanting to use Swiftmailer as a standalone library without Symfony, Laravel, Yii, composer, etc. </p>
  
  <p>According to the <a href="http://swiftmailer.org/docs/introduction.html" rel="nofollow noreferrer">Swiftmailer website</a> the way to include the library is by calling composer's autoload.php, however I am not using composer in this case and would like to know which base files in /vender/swiftmailer need to be included in order to use the library instead of <code>require_once '/path/to/vendor/autoload.php';</code></p>
  
  <p>I looked at the Swiftmailer <a href="https://groups.google.com/forum/#!topic/swiftmailer/V9pZhfiZjaI" rel="nofollow noreferrer">Google Group</a>, but it's been discontinued and says to come here.</p>
  
  <p>Thanks</p>