title: How to block Disposable Email Addresses in your website's registration form?
body: <p>I would like to know of the possible ways to block <a href="http://en.wikipedia.org/wiki/Disposable_email_address" rel="noreferrer">disposable email addresses</a> from registering in my website. </p>
  
  <p>For simplicity, let's take the example where the registration form of the website is done with HTML and PHP.</p>
  
  <p>Any ideas, solutions or suggestions would be greatly appreciated.</p>