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

# Suppress addresses in bulk

`POST /suppressions/batch/add`

## Request

- Base URL: `https://api.mepmail.dev`
- URL: `https://api.mepmail.dev/suppressions/batch/add`
- Auth: HTTP bearer

Blocks up to 1,000 addresses in one request.

## Request body

- BatchAddSuppressionsRequest
  - `emails` string[], required: Addresses to block, up to 1000; duplicates collapse
  - `origin` 'bounce' | 'complaint' | 'manual' | 'unsubscribe': Origin recorded on rows this request creates (default manual): bounce, complaint, manual or unsubscribe; an address already suppressed keeps its origin

## Response `200`

One entry per distinct address (case-insensitive) in input order; addresses already suppressed for any reason return their existing id and keep their origin. New rows record the request's origin (bounce, complaint, manual or unsubscribe; default manual). Accepts up to 1000 addresses (Resend: 100).

- BatchAddSuppressionsResponse
  - `data` SuppressionIdResponse[], required
    - `object` 'suppression', required
    - `id` string, uuid, required

## Other responses

- `401`: Missing, malformed or invalid API key
- `422`: Validation error
- `429`: Rate limit exceeded: 600 requests per minute per API key and 3,000 per team; wait for Retry-After

---

[API](https://skmtc.dev/mepmail/apis/mepmail-api.md) · [All operations](https://skmtc.dev/mepmail/apis/mepmail-api/llms.txt) · [OpenAPI document](https://skmtc.dev/mepmail/apis/mepmail-api/revisions/262a89f73730?raw)