title: Different Content Types in email
body: <p>I was reviewing the source of some emails sent to me and noticed in one that the content type for the text part is different from the HTML part - see below.</p>
  
  <pre><code>--_----------=_MCPart_1153762294
  Content-Type: text/plain; charset="us-ascii";
  
  --_----------=_MCPart_1153762294
  Content-Type: text/html; charset="utf-8"
  Content-Transfer-Encoding: quoted-printable
  </code></pre>
  
  <p>I was wondering if this is okay to have this? The email was sent from Monkey Wrench via MailChimp server.</p>