---
title: "Changes to Downgrade — release the N newest live mailboxes and lower the billed quantity."
method: POST
path: "/remove-mailboxes"
---

# Changes to Downgrade — release the N newest live mailboxes and lower the billed quantity.

`POST /remove-mailboxes`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 1 of 2 revisions.

- **2026-10-19** `242a462d82c4`: 1 warning, 4 info

## Changes

- **2026-10-19** `242a462d82c4`: 1 warning, 4 info
  - added the new `large_order_payment_pending` enum value to the `nextSteps/steps/items/reason` response property for the response status `200`
  - added the optional property `billing/domainEnding` to the response with the `200` status
  - added the optional property `billing/prepay` to the response with the `200` status
  - added the optional property `nextSteps/steps/items/effect/oneOf[#/components/schemas/MailboxBilling]/domainEnding` to the response with the `200` status
  - added the optional property `nextSteps/steps/items/effect/oneOf[#/components/schemas/MailboxBilling]/prepay` to the response with the `200` status

---

[Operation](https://skmtc.dev/coldrig/apis/agent-cold-email-api/docs/remove-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/remove-mailboxes/post)