Hello, when payment is made using the IPN method I do not receive a response. Going to the IPN history of my PayPal account I see that the status is "Retrying" and the "HTTP response code" is 500. What I notice is that my IPN file is never called. When I use a different domain name the ipn file is called. The problem is in the domain name because when I change the domain name on my server it works normally. Is there a way to add my domain name to the PayPal whitelist or is there another solution?
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