SSL Error / RSA premaster secret error

Question

anyone know what is the problem regarding the error that encountered in the PayPal sandbox?

It was working fine for months last time and we changed our server and I

Answer 1

I have run into the same problem and it seems as if the IPN Simulator is unable to handle https properly. (or perhaps it has trouble with RSA keys over 1024 bits?) I am unable to use the simulator, but if I test everything (in the sandbox) using a Paypal business / consumer accounts and fake a purchase, I do get IPN messages sent to my handler.