Hi api-announce,
Stripe sends webhooks from a fixed set of IP addresses. Starting on February 20th, 2020, we’ll be expanding that set to include these new IPs:
3.18.12.63
3.130.192.231
13.235.14.237
13.235.122.149
35.154.171.200
52.15.183.38
If you have configured firewall rules to whitelist webhook receipt from only certain IPs, please be sure to add the new IPs to your whitelist before February 20th, 2020.