[adrukh]

Thank you, this is quite insightful!

> I also found no information on what happens if the Webhook endpoint is not reachable.

When setting a webhook, the app checks it for validity (you get a nice 'hooray, it works!' message posted through the webhook). So if the webhook URL is bad, the app won't accept it. But once accepted, there is no retry policy if a specific notification fails. The failure will be logged internally for troubleshooting, but not presented to the user in any way right now.