title: Image in Laravel 5.6 markdown mail not visible in Gmail
body: <h1>The problem</h1>
  
  <p>I am trying to send a QR image through a markdown mail. This image is in a controller and then passed to the mail format. Then inside I try to display the image with:</p>
  
  <pre><code>&lt;img src="{{ $qr_image }}" alt="QR" title="QR" style="display:block; margin-left: auto; margin-right: auto;" width="200" height="200" data-auto-embed="attachment"/&gt;
  </code></pre>
  
  <p>I am using the <code>eduardokum/laravel-mail-auto-embed</code> package. Now comes the odd part. When sending a mail to an outlook test account, the QR image shows without any problem at all. However when sending to a gmail account I get the following:  <a href="https://i.stack.imgur.com/LfiMk.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/LfiMk.png" alt="enter image description here"></a>. I have tried data-auto-embed="base64" but that didn't solve the provlem.</p>
  
  <p>Is maybe there a way to reference to <code>$qr_image</code> with a file path, since google doesn't like base64? </p>