title: base64 encoded images in email signatures
body: <p>I have to include some images (company logo's etc) in email signatures. I've had all sorts of issues using the embedded images produced by the email system in question (they get sent as attachments generally) and as linked images (requiring permission to display them in the email received).</p>
  
  <p>I have just seen some email from exchange that has a base64 image representation of the logo and uses a  tag to do the displaying. I'm looking for some information on how I could do this in an email signature if possible (how do I generate the base64 version of the logo for a start and what code do I need to get it to work)?</p>
  
  <p>I've tried simple things such as </p>
  
  <pre><code>&lt;body&gt;
  &lt;span&gt;
  &lt;img src=.... &gt;
  &lt;/span&gt;
  &lt;/body&gt;
  </code></pre>
  
  <p>but all I get is the alt text so I'm obviously doing something wrong here.</p>