Supported events
Webhook endpoints can subscribe to Email Sent, Delivered, Email Opened, Link Clicked, Bounced, and Marked as Spam events.
Apply one URL to every event
When creating a webhook in the dashboard, choose Apply to All event types to create event subscriptions for the same URL in one step.
Security
Every outbound webhook is signed with HMAC-SHA256. Verify the X-Webhook-Signature header before trusting the payload.
X-Webhook-Signature: sha256=...
X-Webhook-ID: wh_123Delivery history
Use Webhook Events and Webhook Analytics in the dashboard to inspect attempts, failures, response codes, and retry state.