Apparently since about mid-January, my return page -- which has been working fine for many, many years -- is not getting all the expected data in the post, and it does not validate when sent back to PayPal. (I am setting return_url and rm=2 in the ordering buttons.) Specifically, I'm not getting either receiver_email or business, and since I have many merchants using this service to manage digital product downloads, I need one or the other. But I also require the data to be validated, and the last successful validation I got was January 11. Does anyone know of any recent changes to this processing?