I'm trying to troubleshoot a problem with a Joomla component I brought as the developers aren't helping at all. When I set for an order through the website and pay for it through PayPal, it returns to the website but the IPN handler - ipntest() - hasn't been triggered. ipntest() should send me an email when triggered. I have used the IPN Simulator to try and trigger ipntest() and it says that its been sent successfully but the ipntest() doesn't trigger. If I view the function directly in my browser (e.g. http://example.com/index.php?option=com_mycomponent&task=orderprocessor.ipntest), it works fine and sends the email. Any help would be most appreciated.