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Hello, since yesterday I am receiving mail of error notification. Apparently my website cannot connect back to PayPal or can’t validate the instant payment notification. If I check on PayPal, the pending notification has received the error 503 from my website.
For one of the payment, it worked only after 10 tries. I know that PayPal has changed some stuff recently and that might be related. If that’s the case, other people might have noticed the same problem.
Best regards