Loading webhooks…
Real-time HTTP POST notifications when forwards land or DNS drifts. Each request is signed with HMAC-SHA256 in the X-ArcRelay-Signature header.
Get notified the moment an email is forwarded, blocked, or fails — and when DNS records change underneath you. Available on Studio and above.
See plans →Up to 5 endpoints per account. URLs must be HTTPS and cannot point to private/internal networks.
Verify each request by computing HMAC-SHA256(rawBody, secret) and comparing to the X-ArcRelay-Signature header.