To receive PayPal IPN, I need to whitelist the source IP address of the IPN packet to let the packet pass the security firewall on my server. My search showed that I can find the IP address from the web site "https://ppmts.custhelp.com/app/answers/detail/a_id/92" But my browse showed that site is untrusted. I know PayPal has separated from eBay recently and there are many changes going on. But where I can find the correct IP address(es)?
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