Hello,
when i try to use the developer ipn-simulation on our domain "https://www.elephanthaven.com" i get the following error:
"IPN was not sent, and the handshake was not verified. Review your information."
However if i try the ipn-simulation on our domain "https://www.rau-onlineshop.de" i get the following success-message:
"IPN was sent and the handshake was verified."
We already tried to compare the different ssl-certificates, but no difference can be seen. On ssl-certifacte-test-pages the certificate is marked as valid for paypal.
Has anyone an idea, why this is happening?
Best regards.
