---
title: "Suppress addresses in bulk"
method: POST
path: "/v1/suppressions/batch/add"
tags: ["Suppressions"]
---

# Suppress addresses in bulk

`POST /v1/suppressions/batch/add`

## Request

- Base URL: `https://smtpfa.st/api`
- URL: `https://smtpfa.st/api/v1/suppressions/batch/add`
- Auth: HTTP bearer

Resend-compatible: add 1 to 100 addresses as manual suppressions of every send (scope all). An address already suppressed keeps its record, except that a marketing-only one becomes a manual suppression of every send. Requires the contact:write scope.

## Request body

- object
  - `emails` string[], required

## Response `201`

The suppressions

- object

## Other responses

- `400`: Bad request - check your payload
- `401`: Invalid or missing API key
- `403`: Forbidden - domain not verified or insufficient permissions
- `429`: Rate limit exceeded - retry after the period indicated in the Retry-After header
- `500`: Internal server error

---

[API](https://skmtc.dev/smtpfa/apis/smtpfast-api.md) · [All operations](https://skmtc.dev/smtpfa/apis/smtpfast-api/llms.txt) · [OpenAPI document](https://skmtc.dev/smtpfa/apis/smtpfast-api/revisions/79dda742f53e?raw)