---
title: "POST /api/v1.0/send/"
method: POST
path: "/api/v1.0/send/"
tags: ["messages"]
---

# POST /api/v1.0/send/

`POST /api/v1.0/send/`

Send a previously created draft message.

    This endpoint finalizes and sends a message previously saved as a draft.
    The message content (subject, body, recipients) should be set when creating/updating the draft.
    Returns a task ID that can be used to track the sending status.

## Request body

- SendMessageRequest — Serializer for sending messages.
  - `messageId` string, uuid, required
  - `senderId` string, uuid, required
  - `archive` boolean
  - `textBody` string
  - `htmlBody` string

## Response `200`

- SendMessageResponse
  - `task_id` string, uuid, required — Task ID for tracking

## Other responses

- `400`
- `403`
- `500`

## Changes

- **2026-06-13** `9d5cc50423c3` — 1 breaking, 2 info
  - removed the required property `message` from the response with the `200` status
  - added the non-success response with the status `500`
  - removed the non-success response with the status `503`
- **2026-04-08** `bd878fae5872` — 1 info
  - added the required property `message/mime_id` to the response with the `200` status
- **2026-03-16** `00a56b21a28b` — 1 warning, 3 info
  - added the new `autoreply` enum value to the `message/signature/allOf[#/components/schemas/ReadMessageTemplate]/type` response property for the response status `200`
  - added the optional property `message/signature/allOf[#/components/schemas/ReadMessageTemplate]/metadata` to the response with the `200` status
  - added the required property `message/signature/allOf[#/components/schemas/ReadMessageTemplate]/is_active_autoreply` to the response with the `200` status
  - added the required property `message/signature/allOf[#/components/schemas/ReadMessageTemplate]/signature` to the response with the `200` status
- …earlier changes not shown

[Full history](https://skmtc.dev/betagouv/apis/messages-api/changes/api/v1.0/send/post.md)

---

[API](https://skmtc.dev/betagouv/apis/messages-api.md) · [All operations](https://skmtc.dev/betagouv/apis/messages-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/betagouv/messages-api/revisions/ba0c140b76dd/schema)