Webhooks: being told when something happens
A webhook is a URL you give us; we call it the moment an event happens, so your systems do not have to keep asking. Events: an email was sent, a send was blocked, an article was published, a site was added to a hub.
Each call is signed with a secret shown once when you add the webhook, so your receiver can verify it came from mxAURA. Failed deliveries retry for half a day; an endpoint that keeps failing pauses itself until you resume it. Send test proves the wiring.