title: Intermittent image link behaviour in iOS mail client
body: <p>First of all, apologies if this is in the wrong site, it's not specifically a development, admin or other specific issue.</p>
  
  <p>I've had to test sending HTML emails with "Image Links" on a variety of platforms due to an issue reported to me where people have been experiencing intermittant issues clicking those links with the iPhone mail client.</p>
  
  <p>The test mail is very simple, along these lines:</p>
  
  <pre><code>&lt;a href="http://www.google.com"&gt;
  &lt;img src="something.png"/&gt;
  &lt;/a&gt;
  </code></pre>
  
  <p>When the mail arrives and I click on the link, I get the following popup rather than the client following the link. As you can see, the URL is displayed in the popup so clearly it's being parsed correctly.</p>
  
  <p><img src="https://i.stack.imgur.com/iFx4j.jpg" alt="Screenshot of popup"></p>
  
  <p>However, <strong>intermittently</strong> it will work! I can't quite pin down exactly what's causing it to work, but approximately 20% of the time it will (even the same email that has previously failed to work).</p>
  
  <p>What gives? am I loosing my marbles? Is this some kind of iOS security feature to prevent spammers hiding links in emails?</p>
  
  <p>The mail is delivered via an Exchange active-sync account.</p>
  
  <p>Many Thanks</p>