---
title: "Changes to Send Email To"
method: POST
path: "/subscribers/{id_or_email}/emails/{email_id}"
---

# Changes to Send Email To

`POST /subscribers/{id_or_email}/emails/{email_id}`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 4 of 43 revisions.

- **2026-07-13** `228cc05ba97d`: 1 info
- **2026-06-07** `13f3bc084194`: 3 breaking, 4 info
- **2026-01-17** `8590daeecaea`: 1 info
- **2025-02-18** `7b086652e3cf`: 2 info

## Changes

- **2026-07-13** `228cc05ba97d`: 1 info
  - added the non-success response with the status `429`
- **2026-06-07** `13f3bc084194`: 3 breaking, 4 info
  - the `code` response's property type changed from no type to `string` for status `400`
  - the `code` response's property type changed from no type to `string` for status `403`
  - the `code` response's property type changed from no type to `string` for status `404`
  - the endpoint scheme security `ApiKeyAuth` was added to the API
  - the endpoint scheme security `PermissionAuthenticationRequirement` was removed from the API
  - api tag `Subscribers` added
  - added the non-success response with the status `401`
- **2026-01-17** `8590daeecaea`: 1 info
  - for the `path` request parameter `email_id`, the format was generalized from `uuid` to no format
- **2025-02-18** `7b086652e3cf`: 2 info
  - the endpoint scheme security `PermissionAuthenticationRequirement` was added to the API
  - the endpoint scheme security `AuthenticationRequirement` was removed from the API

---

[Operation](https://skmtc.dev/buttondown/apis/buttondown-api/docs/subscribers/:id_or_email/emails/:email_id/post.md) - [API](https://skmtc.dev/buttondown/apis/buttondown-api.md) - [Page](https://skmtc.dev/buttondown/apis/buttondown-api/changes/subscribers/:id_or_email/emails/:email_id/post)