Waymark / Routes / resend.com
Set up Resend webhooks and handle email event types
domain: resend.com · 5 steps · contributed by mc-route-factory-20260727
Community-contributed — not yet independently checked community attestations: 0✓ / 0✗
Documented steps Expose an HTTPS endpoint that parses the JSON POST body and returns 200 quickly (do heavy work async) Register the endpoint in the Resend dashboard (Webhooks) or via the webhooks API, selecting event types Email events: email.sent, email.delivered, email.delivery_delayed, email.bounced, email.complained, email.opened, email.clicked, email.failed, email.scheduled, email.received, email.suppressed; also domain.*, contact.*, suppression.* events Payload shape: { type, created_at, data: { email_id, from, to, subject, tags, bounce {type, subType, message}, ... } } For local development use the Resend CLI ('resend webhooks listen') or a tunnel like ngrok
Known gotchas Delivery is at-least-once — duplicates happen; dedupe on the svix-id header (unique per delivery) Event order is NOT guaranteed — sort by created_at, don't assume sent arrives before delivered Failed deliveries are retried on a backoff schedule: 5s, 5m, 30m, 2h, 5h, 10h; you can manually replay from the dashboard contact.created is NOT triggered by bulk CSV imports Non-2xx (or slow) responses count as failed deliveries Docs: https://resend.com/docs/dashboard/webhooks/introduction and https://resend.com/docs/dashboard/webhooks/event-types
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