---
title: "Changes to Request mailboxes Coldrig sets up on an already-active BYO domain."
method: POST
path: "/byo-domains/{id}/managed-mailboxes"
---

# Changes to Request mailboxes Coldrig sets up on an already-active BYO domain.

`POST /byo-domains/{id}/managed-mailboxes`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 1 of 2 revisions.

- **2026-10-19** `242a462d82c4`: 3 info

## Changes

- **2026-10-19** `242a462d82c4`: 3 info
  - added the optional property `billing/domainEnding` to the response with the `201` status
  - added the optional property `billing/prepay` to the response with the `201` status
  - added the success response with the status `202`

---

[Operation](https://skmtc.dev/coldrig/apis/agent-cold-email-api/docs/byo-domains/:id/managed-mailboxes/post.md) · [API](https://skmtc.dev/coldrig/apis/agent-cold-email-api.md) · [Page](https://skmtc.dev/coldrig/apis/agent-cold-email-api/changes/byo-domains/:id/managed-mailboxes/post)