---
title: "Changes to Sandbox: Create an Inbound Mail Item"
method: POST
path: "/simulations/inbound_mail_items"
---

# Changes to Sandbox: Create an Inbound Mail Item

`POST /simulations/inbound_mail_items`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 1 of 34 revisions.

- **2026-08-29** `21462c0df069` — 1 info

## Changes

- **2026-08-29** `21462c0df069` — 1 info
  - added the required property `account_id` to the response with the `200` status

---

[Operation](https://skmtc.dev/increase/apis/increase-api-2/docs/simulations/inbound_mail_items/post.md) · [API](https://skmtc.dev/increase/apis/increase-api-2.md) · [Page](https://skmtc.dev/increase/apis/increase-api-2/changes/simulations/inbound_mail_items/post)