Hello, I'm using the ipnproxy.php suggested because my server use https and port 8080. In global settings is set to http://www.domain.de/ipnproxy.php but when a customer try to pay a invoice always get a redirection to http://domain.de:8080/billing/payments/pay.php?id=xxxxxxxxxx (without https) error 404. I have re-checked permissions and owner from the script. php5-curl is installed. I have changed urls to test but I get the redirection and 404, no matter I do I get the same redirection. Any idea? Cheers!