---
title: "email_envelope.approved delivered to your endpoint"
method: POST
path: "email_envelope.approved"
tags: ["Webhooks"]
---

# email_envelope.approved delivered to your endpoint

`POST email_envelope.approved` (webhook)

InkSeal sends this request to every active subscription whose `events` array contains `email_envelope.approved`, or whose `events` is `null`. Verify `X-InkSeal-Signature` against the raw body before doing anything else, and deduplicate on `id`.

## Headers

- `X-InkSeal-Event-Id` string, required
- `X-InkSeal-Signature` string, required
- `X-InkSeal-Timestamp` string, required

## Payload

- object
  - `id` string, required: Stable event id, derived from the transition rather than the clock. Every retry of this event carries the same value.
  - `type` 'email_envelope.approved', required: The event type.
  - `data` WebhookEmailEnvelopeApprovedPayload, required: The sender approved the mail agent's draft, by approval link or by keyword reply.
    - `envelopeId` string, nullable, required: Public id of the envelope, or null when none was created.
    - `inboundMessageId` string, required: Id of the inbound email message, correlating the email and envelope lifecycles.
  - `timestamp` string, date-time, required: When the transition committed. Not the same as X-InkSeal-Timestamp, which is when this attempt was made.

## Acknowledgement `200`

Acknowledged. Return any 2xx, with or without a body, as soon as the event is stored; do your work afterwards. Anything that is not a 2xx, including a redirect (redirects are never followed) and a response slower than the 30 second timeout, counts as a failure and is retried with exponential backoff from 60 seconds, doubling per attempt and capped at 1 hour, for at most 6 attempts. After the sixth the event is terminal and only a manual retry through POST /webhooks/{webhookId}/events/{eventId}/retry will send it again.

---

[API](https://skmtc.dev/inkseal/apis/inkseal-api.md) · [All operations](https://skmtc.dev/inkseal/apis/inkseal-api/llms.txt) · [OpenAPI document](https://skmtc.dev/inkseal/apis/inkseal-api/revisions/c440c981d578?raw)