Webhooks POST JSON to your URL when events occur—subscribes, opens, clicks, bounces, etc.

Configure

1. Settings → Webhooks → Create webhook
2. Enter your endpoint URL (HTTPS required in production)
3. Select events to subscribe to
4. Save the signing secret to verify payloads

Payloads

Each event type includes subscriber, list, and campaign identifiers. Inspect Webhook logs for delivery status and retry failures.

Automation webhooks

Send webhook actions in automations fire when a subscriber reaches that step—useful for CRM updates or internal workflows.

See Webhook payloads in this help center for field-level reference (expand as your API stabilizes).