I have a live site that is using PayPal IPN. It is working fine today. I'm in the middle of upgrading the PayPal integration to use the REST APIs. I have everything set up in the sandbox environment and payments are coming through fine in my staging environment. The problem is that webhooks are not making it to my staging site. I see the PAYMENT.CAPTURE.COMPLETED event in the developer dahsboard but inside the transmissions section the webhook pointing to my staging site is always "Pending" as if PayPal hasn't even attempted to connect. I also see no incoming traffic in my server logs. I even tried to set up another webhook using webhook.site and that worked fine. Is my domain blacklisted for some reason or do I need to do anything to get it approved for webhooks? Is there any way I can get more detail on why those requests failed? Thanks in advance for all your help.
... View more