title: Google email markup not showing
body: <p>I'm trying to make a simple view action using Email markup from Google inside my emails (<a href="https://developers.google.com/gmail/markup/reference/go-to-action#view_action" rel="nofollow noreferrer">https://developers.google.com/gmail/markup/reference/go-to-action#view_action</a>)</p>
  
  <p>I use this <code>ld+json</code> inside my email template</p>
  
  <pre><code>&lt;script type="application/ld+json"&gt;
  {
    "@context": "http://schema.org",
    "@type": "EmailMessage",
    "potentialAction": {
      "@type": "ViewAction",
      "target": http://google.com",
      "url": "http://google.com",
      "name": See ticket"
    }
  }
  &lt;/script&gt;
  </code></pre>
  
  <p>I used Google email markup tester to valid this code.</p>
  
  <p>I use registred emails (<a href="https://developers.google.com/gmail/markup/registering-with-google" rel="nofollow noreferrer">https://developers.google.com/gmail/markup/registering-with-google</a>)</p>
  
  <p>But I still can show the emails markup on Gmail.</p>
  
  <p>Did I miss something ? </p>
  
  <p>Do you have any clues ?</p>
  
  <p>Thanks</p>