Webhooks

Get a signed event when inboxes, domains or IPs change state.

Add an endpoint

In API → Webhooks, add an HTTPS URL and pick the events you want.

{
  "type": "inbox.ready",
  "inbox": "inb_8f2k1q",
  "at": "2026-10-09T14:02:11Z"
}

Verify the signature

Each request has a Mailyard-Signature header. Check it with your webhook secret before trusting the payload.