title: Set new rails environment variables
body: <p>This is probably a easy question but cant seem to find a straight answer. I'm trying to set up a mailer and config the smtp settings and I was wondering how do you set new environment variables for</p>
  
  <pre><code>:user_name      =&gt; ENV['GMAIL_USERNAME'],
  :password       =&gt; ENV['GMAIL_PASSWORD']
  </code></pre>
  
  <p>Thanks for the help.</p>