---
title: "Post Mail Message"
method: POST
path: "/v1/mail/messages"
tags: ["public"]
---

# Post Mail Message

`POST /v1/mail/messages`

## Request

- Base URL: `https://api.fatheron.dev` (the document declares no server; this is the origin it was published from)
- URL: `https://api.fatheron.dev/v1/mail/messages`
- Auth: one of:
  - HTTP bearer
  - API key in header `X-API-Key`

## Headers

- `Authorization` string, nullable
- `X-API-Key` string, nullable

## Cookies

- `fh_access_token` string, nullable

## Request body

- SendMailRequest
  - `mailbox_id` string, required
  - `to` string, email, required
  - `cc` string[]
  - `subject` string
  - `body` string
  - `body_html` string, nullable
  - `signed_mime_b64` string, nullable
  - `in_reply_to_message_id` string, nullable
  - `include_signature` boolean

## Response `201`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/fatheron/apis/fat-heron-builders-api.md) · [All operations](https://skmtc.dev/fatheron/apis/fat-heron-builders-api/llms.txt) · [OpenAPI document](https://skmtc.dev/fatheron/apis/fat-heron-builders-api/revisions/82bc021b1102?raw)