When using IPv4,
app.moderntreasury.com may resolve to any address in the following CIDR blocks
If your clients are using IPv4, you can include these CIDR blocks in your firewall for egress filtering.
We are unable to support static IPv6 addresses at the moment.
Modern Treasury will send webhooks to you from one of these IP addresses. You can include them in your firewall for ingress filtering, if you would like to verify the transmission IP as part of a webhook receipt solution.
Both lists are available at the following URLs: