Depending on your network and security requirements, you might need to add our network to your firewall's whitelist to receive webhook notifications from us.
We do not provide a list of IP addresses to whitelist. IP addresses change over time due to various reasons, for example, ISP configuration changes. This can lead to disruptions in receiving notifications if IP addresses are hard-coded.
Add our network to your whitelist
To make sure you can communicate with our network, you can either:
Use a domain whitelist. Include our domain
out.adyen.comif your network configuration allows domain whitelisting.
Systematically resolve our IP addresses. Perform DNS lookup for
out.adyen.com. We recommend that you check every hour. However, if you choose to hardcode the resolved IP addresses to a whitelist, you still run the risk of a disruption if IP addresses change in the DNS lookup interval.