curl -X GET 'https://api.resend.com/suppressions/example-suppression' \
  -H "Authorization: Bearer $RESEND_API_KEY" \
  -H 'User-Agent: my-app/1.0'

# GET /suppressions/{suppression} (Resend API)
Base URL: https://api.resend.com
Auth: Authorization: Bearer <RESEND_API_KEY>
Last verified: 2026-09-03

> Retrieve a single suppression by ID or email

## Critical Gotchas
* All requests must include a `User-Agent` header (e.g. `User-Agent: my-app/1.0`) or the API returns HTTP 403.
* The `to` field is an array of strings, even when sending to a single recipient.

## cURL
curl -X GET 'https://api.resend.com/suppressions/example-suppression' \
  -H "Authorization: Bearer $RESEND_API_KEY" \
  -H 'User-Agent: my-app/1.0'

## Parameters
| Name | In | Type | Required | Description |
| :--- | :--- | :--- | :--- | :--- |
| suppression | path | string | Yes | The Suppression ID or email address. |

## Response (200 OK)
{"object":"suppression","id":"e169aa45-1ecf-4183-9955-b1499d5701d3"}

---
Need an API key? Get one at https://resend.com/signup

GET

/suppressions/{suppression}

Resend API

Retrieve a single suppression by ID or email

Base URL: https://api.resend.com
Auth: Authorization: Bearer <RESEND_API_KEY>
Last verified: 2026-09-03 · upstream hash matched

Actions

Agents: curl -H "Accept: text/markdown" this URL
→ 168 tokens · Vary: Accept

Critical gotchas

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

The to field is an array of strings, even when sending to a single recipient.

cURL

curl -X GET 'https://api.resend.com/suppressions/example-suppression' \  -H "Authorization: Bearer $RESEND_API_KEY" \  -H 'User-Agent: my-app/1.0'

Get a free Resend API key → sponsored

Parameters

Name	In	Type	Required	Description
suppression	path	string	Yes	The Suppression ID or email address.

Response 200 OK

{
  "object": "suppression",
  "id": "e169aa45-1ecf-4183-9955-b1499d5701d3",
  "email": "steve.wozniak@gmail.com",
  "origin": "manual",
  "source_id": "479e3145-dd38-476b-932c-529ceb705947",
  "created_at": "2023-10-06 23:47:56.678+00"
}