WEBHOOK_UNAUTHORIZED

Inbound webhook credentials missing or wrong

HTTP status 401 Unauthorized, code WEBHOOK_UNAUTHORIZED.

What it means#

The Postmark webhooks (/webhooks/in/postmark-inbound, /webhooks/in/postmark-events) are authenticated by HTTP Basic credentials in the webhook URL, because Postmark does not sign its webhooks. This request carried none, or the wrong ones. Nothing was stored.

What to do#

Configure the webhook URL in Postmark as https://<user>:<password>@<api host>/v1/webhooks/in/postmark-inbound, with the credentials the deployment holds.

On the wire#

Every error response carrying this code names this page in error.moreInfo, with the request id in the query string. See Error codes for the response shape and the list of every code.