# PATCH /inboxes/{inbox_id} (Resend API)
Base URL: https://api.resend.com
Auth: Authorization: Bearer <RESEND_API_KEY>
Last verified: 2026-10-20

> Update an existing inbox by ID or email address

## Critical Gotchas
* All requests must include a `User-Agent` header (e.g. `User-Agent: my-app/1.0`) or the API returns HTTP 403.

## cURL
curl -X PATCH 'https://api.resend.com/inboxes/inbox-id' \
  -H "Authorization: Bearer $RESEND_API_KEY" \
  -H 'User-Agent: my-app/1.0' \
  -H 'Content-Type: application/json' \
  -d '{"name":"Customer Support","from_name":"Ada from Support"}'

## Parameters
| Name | In | Type | Required | Description |
| :--- | :--- | :--- | :--- | :--- |
| inbox_id | path | string | Yes | The Inbox ID or the inbox email address, such as `support... |
| name | body | string | Yes | New internal name for the inbox. Recipients do not see it... |
| from_name | body | string | No | The name recipients see when mail is sent from this inbox... |

## Response (200 OK)
{"object":"inbox","id":"b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1"}

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