title: Conditional HTML (IF/ELSE) logic
body: <p>I understand that in order to display outlook-specific HTML within an email I can implement code such as:</p>
  
  <pre><code>&lt;!--[if (gte mso 9)|(IE)]&gt;
  Welcome to the newsletter.
  &lt;![endif]--&gt;
  </code></pre>
  
  <p>However, how do I implement if/else logic. For example, <em>without using CSS classes</em>, I need to display one section of content in Outlook and a completely different section of content in other clients.  </p>
  
  <p>Is this possible?</p>
  
  <p>(CSS Classes have proven to be unreliable hence my requirements for conditional HTML instead).</p>