---
title: "Contact subscribed to mailing list"
method: POST
path: "contactMailingListSubscribed"
tags: ["Webhooks"]
---

# Contact subscribed to mailing list

`POST contactMailingListSubscribed` (webhook)

Sent when a contact is subscribed to a mailing list. Contains `contactIdentity` and `mailingList` objects. When double opt-in is enabled, this event only fires after the contact confirms their subscription.

## Headers

- `webhook-id` string, required
- `webhook-timestamp` string, required
- `webhook-signature` string, required

## Payload

- WebhookContactMailingListSubscribedPayload
  - `eventName` 'contact.mailingList.subscribed', required
  - `eventTime` integer, required — Unix timestamp in seconds.
  - `webhookSchemaVersion` '1.0.0', required
  - `contactIdentity` WebhookContactIdentity, required
    - `id` string, required
    - `email` string, required
    - `userId` string, nullable, required
  - `mailingList` WebhookMailingList, required — Details of the mailing list.
    - `id` string, required
    - `name` string, required
    - `description` string, nullable, required
    - `isPublic` boolean, required

## Acknowledgement `200`

Webhook received successfully. Return any 2xx status code to acknowledge delivery.

---

[API](https://skmtc.net/loops/apis/loops-openapi-spec.md) · [All operations](https://skmtc.net/loops/apis/loops-openapi-spec/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/loops/loops-openapi-spec/revisions/9cc087257f0d/schema)