title: What do <o:p> elements do anyway?
body: <p>I've been running into some (standard) issues with Microsoft Office injecting its nasty markup into some html after forwarding an email via Outlook.</p>
  
  <p>I'm interested to know:</p>
  
  <ul>
  <li>Is there a resource that explains what <code>&lt;o:p&gt;</code> elements <em>actually do</em></li>
  <li>What other MSO elements are commonly injected</li>
  </ul>