title: Mailgun Inline images, how does it work?
body: <p>I'm working with mailgun and want to add images to my newsletters.
  Now I did this:</p>
  
  <pre><code>$mg-&gt;sendMessage($domain, array('from'    =&gt; 'developer@mijnprojectgroep.eu', 
                                  'to'      =&gt; 'developer@mijnprojectgroep.eu', 
                                  'subject' =&gt; 'Developers Mail Test MijnProjectgroep batch #1', 
                                  'text'    =&gt; 'Hallo %recipient_fname%,
  
  
                  'html'    =&gt; '&lt;html&gt;
  &lt;img style="display:block;" class="img1" src="cid:header-clip.png" width="600" height="64" /&gt;
  &lt;/html&gt;',
  array('inline' =&gt; '@.././images/newsletter/header-clip.png'),
  
  'o:tracking-opens' =&gt; 'yes'));
  </code></pre>
  
  <p>But no images are loading while I receive the newsletter.
  The document with the script above is in:</p>
  
  <p>Root --> /MailGun/</p>
  
  <p>The images are in:</p>
  
  <p>Root --> /images/newsletter/</p>
  
  <p>Also tried: @../../images/newsletter/header-clip.png</p>
  
  <p>The documentation is here:</p>
  
  <p><a href="http://documentation.mailgun.com/user_manual.html?highlight=html#sending-via-api" rel="nofollow">http://documentation.mailgun.com/user_manual.html?highlight=html#sending-via-api</a></p>
  
  <p>What did I do wrong?</p>