---
title: "Register Domain"
method: POST
path: "/api/v1/email-identities/domains/register"
tags: ["email_identities"]
---

# Register Domain

`POST /api/v1/email-identities/domains/register`

Register a new sending domain with Resend.

Returns DNS records the tenant must add before verification.

## Request body

- DomainRegisterRequest — Register a new sending domain with Resend.
  - `domain` string, required — e.g. hotel.com

## Response `200`

Successful Response

- DomainRegisterResponse
  - `resend_domain_id` string, required
  - `domain` string, required
  - `status` string, required
  - `dns_records` DomainDnsRecord[], required
    - `record_type` string, required
    - `name` string, required
    - `value` string, required
    - `ttl` string, nullable
    - `priority` integer, nullable

## Other responses

- `422` — Validation Error

## Changes

> 28 revisions in range; 1 not diffed.

- **2026-09-03** `d65b8fefae34` — 2 info
  - added the optional property `detail/items/ctx` to the response with the `422` status
  - added the optional property `detail/items/input` to the response with the `422` status

[Change history](https://skmtc.dev/getanana/apis/cleon-api/changes/api/v1/email-identities/domains/register/post.md)

---

[API](https://skmtc.dev/getanana/apis/cleon-api.md) · [All operations](https://skmtc.dev/getanana/apis/cleon-api/llms.txt) · [OpenAPI document](https://skmtc.dev/getanana/apis/cleon-api/revisions/6b978a517225?raw)