Webhooks
Outgoing message status changed
Telerivet sends this webhook when outgoing message status changed.
Setup: Enable 'Message status notifications' in Project Settings, or specify status_url when sending a message.
Request format: POST with application/x-www-form-urlencoded body.
postWebhooksendStatus
Response
Webhook processed successfully
Changes
Webhooks have no change history: a webhook is keyed by its event name rather than a path and method, so no recorded change can name it.