---
title: "Send email with design or HTML."
method: POST
path: "/emails/send/"
tags: ["emails"]
---

# Send email with design or HTML.

`POST /emails/send/`

**Default (Latest)**: Send email with design JSON or HTML content.

## Request body

- union
  - object
    - `design` object, required — Proprietary design format JSON
    - `html` string — HTML content to send
    - `to` string, email, required — Recipient email address
    - `subject` string — Email subject line
    - `mergeTags` object — Optional merge tags for personalization
  - object
    - `design` object — Proprietary design format JSON
    - `html` string, required — HTML content to send
    - `to` string, email, required — Recipient email address
    - `subject` string — Email subject line
    - `mergeTags` object — Optional merge tags for personalization

## Response `200`

Default Response

- object
  - `messageId` string — Unique message identifier
  - `status` 'sent' | 'queued' | 'failed'

## Other responses

- `400` — Default Response

## Changes

- **2025-12-09** `53ff0a03b255` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/unlayer/apis/unlayer-api/changes/emails/send/post.md)

---

[API](https://skmtc.dev/unlayer/apis/unlayer-api.md) · [All operations](https://skmtc.dev/unlayer/apis/unlayer-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/unlayer/unlayer-api/revisions/53ff0a03b255/schema)