---
title: "Check custom domain"
method: POST
path: "/email/domain/check"
tags: ["domain"]
---

# Check custom domain

`POST /email/domain/check`

## Request

- The document declares no server URL.
- Auth: none declared

Check if a custom domain exists for the authenticated user

## Request body

- ApiDomainReq
  - `name` string, required

## Response `200`

OK

- string

## Other responses

- `400`: Bad Request

## Changes

- **2026-09-29** `6eb6a9df43a3`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/ivpn/apis/ivpn-mailx-api/changes/email/domain/check/post.md)

---

[API](https://skmtc.dev/ivpn/apis/ivpn-mailx-api.md) - [All operations](https://skmtc.dev/ivpn/apis/ivpn-mailx-api/llms.txt) - [OpenAPI document](https://skmtc.dev/ivpn/apis/ivpn-mailx-api/revisions/6eb6a9df43a3?raw)