title: Declaring mime type for html-email
body: <p>I want to create a html email and I've read a lot about how to do it. There is one piece of information I can't find. How should I declare the mime type? I tried with: </p>
  
  <pre><code>meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /&gt;
  </code></pre>
  
  <p>but it doesn't work.</p>
  
  <p><strong>Later edit:</strong><br>
  I am trying to set the content-type of the mail to <code>text/html</code> but I don't know how. All this when writing from a regular email client. I have to declare it in the mail body? Or in the mail header (if so, how do I o it?)?</p>