title: IPN Simulator does not work on non .com first level domains
body: <p>I'm trying to test using the IPN Simulator and can't get it to work with anything other than <strong>first level .com domain</strong></p>
  
  <p>Anything like</p>
  
  <p><em>domain.co.uk</em> or
  <em>subdomain.domain.com</em></p>
  
  <p>is giving me errors. (We could not send an IPN due to an HTTP error.)</p>
  
  <p>This makes it more difficult, as I'm obviously not going to be testing on my live domain. </p>
  
  <p>Am I missing something?</p>
  
  <p>Thanks,
  Stevo</p>