Which IP addresses are used by Webhooks?

We're in the process of integrating several Jotform forms via webhooks. We want to open a minimal hole in our firewall to allow this. Is there a set of IP addresses or domain names we can rely on for firewall config?

We were able to trace a POST back to 136.161.239.35.bc.googleusercontent.com, but we're assuming this is just a generic Google cloud address.

I have passed this to our back-end team, so we can have this information from them directly, we will keep you updated via this ticket. 

Thanks. 

Bump.

We would like to apologize for any inconvenience for we haven't heard anything yet from our back-end team regarding the information you are requesting. Allow me to send a follow-up to them on your behalf. Please be assured that once we have an update we will notify you on this support ticket the soonest.

Hey everyone. I know there's a lot going on, but it's been almost a month. There must be a range of IPs or hostnames that we can rely on for firewall configuration.

Please accept our sincere apologies for the delay. We still do not have an update on the ticket, but I will send a follow-up to assigned team, asking for the update. 

Again, our apologies. We will keep you updated here.

Any progress on this?

Hi - We still do not have an updates from our Developers. Once we do, we will notify you immediately. 

Thank you!

Hello again. Checking to see if you've heard anything.

Sorry for the inconvenience.

We still do not have any updates from our developers. 

Once we do, we will let you know immediately. Thank you!