The addresses and numbers the organization no longer sends to

GET /suppressions

The addresses and numbers the organization no longer sends to, newest first: each with why — a message to it bounced permanently (bounced), its owner marked one as spam (complained) or the number asked to receive no more texts (opted-out) — the notification that did it and the provider's diagnostic.

A send to a suppressed address is refused 409 RecipientSuppressed until the suppression is lifted.

Access

Requires settings:read or notifications:read.

Any one of these scopes is enough.

How scopes come from roles: Scopes and roles. Getting a token: Authentication and app tokens.

AI agent tool

Agents call this as notifications_list_suppressions (Notifications: Suppressed addresses), in the notifications toolset. It only reads.

Connecting an agent: AI agents.

Example

curl

curl -X GET 'https://notifications.getmanifold.io/suppressions' \
  -H "Authorization: Bearer $MANIFOLD_TOKEN"

JavaScript (fetch)

const response = await fetch("https://notifications.getmanifold.io/suppressions", {
  method: "GET",
  headers: { Authorization: `Bearer ${process.env.MANIFOLD_TOKEN}` },
});
if (!response.ok) throw new Error(`${response.status}: ${await response.text()}`);
const answer = await response.json();

Response · 200 · application/json

{
  "items": [
    {
      "id": "sup_01a15b10-4c2e-7d3f-8a4b-5c6d7e8f9a0b",
      "address": "old-buyer@ridgeline-outdoor.example",
      "channel": "email",
      "reason": "bounced",
      "notificationId": "ntf_01a15b02-3d4e-7f5a-9b6c-7d8e9f0a1b2c",
      "detail": "smtp; 550 5.1.1 user unknown",
      "suppressedAt": "2026-10-21T01:15:09.000Z"
    }
  ]
}

The panel writes this call in other languages. It does not send it: Manifold's APIs do not take calls from a web page on another site, so run the call from your own code or terminal. The whole API as OpenAPI: notifications-manager.openapi.json. Base URL https://notifications.getmanifold.io.

Errors

Every refusal is a status and a JSON body whose _tag names it. A refused call changes nothing.

`401`

Refusal	What it means	What to do
`Unauthorized` reason	The token is missing, expired or not one Manifold issued.	Get a fresh token and send the call again.
`TokenAlreadyUsed` tokenId	A single-use app token was already spent.	Mint a new token for this call.

`402`

Refusal	What it means	What to do
`SubscriptionRequired` status	The organization's subscription has lapsed, so writes are refused.	An owner settles billing. Reads still work meanwhile.

`403`

Refusal	What it means	What to do
`TenantRequired` userId	The token names no organization.	Choose the organization, then get a new token.
`ScopeRequired` required	The token's roles do not grant the scope this call needs.	Ask an owner or admin for a role that grants it.

`409`

Refusal	What it means	What to do
`MirroredFromSource` source	This area is fed by your source system until the organization goes live.	Make the change in the source system, or go live first.

`503`

Refusal	What it means	What to do
`RequestLogUnavailable` tokenId, reason	The service could not record the request, so it did nothing.	Try again shortly.

How refusals work everywhere: Errors.

Used in

Send mail from your own domain, step 9: Read the suppressed addresses