> ## Documentation Index
> Fetch the complete documentation index at: https://docs.apollodeploy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Export suppressions

> Exports the entire suppression list for the project as a CSV file. The response has `Content-Type: text/csv` and a `Content-Disposition: attachment` header suitable for file download. Large lists are streamed.

### Requirements

- **Permission:** `suppressions:read`.
- **Project access:** the path project must match the API key's project.
- **HTTP rate limit:** 120 requests per 60 seconds per API key.



## OpenAPI

````yaml /signal/api-reference/openapi.json get /v1/projects/{projectId}/suppressions/export
openapi: 3.1.0
info:
  title: Apollo Signal API
  version: 1.0.0
  description: >-
    Public REST API for transactional email, contacts, audiences, webhooks,
    metrics, projects, and sending domains.
servers:
  - url: https://api.signal.apollodeploy.com
    description: Production
security: []
tags:
  - name: Emails
    description: Send, inspect, cancel, validate, and stream transactional email activity.
  - name: Metrics
    description: Read project, topic, message, and deliverability analytics.
  - name: Suppressions
    description: Manage addresses that Apollo Signal must not send to.
  - name: Segments
    description: Create dynamic contact groups and inspect their membership.
  - name: Topics
    description: Manage subscription topics and topic membership.
  - name: Contact properties
    description: Define the custom fields available on project contacts.
  - name: Contacts
    description: >-
      Manage contacts, audience membership, images, activity, and engagement
      data.
  - name: Webhooks
    description: Manage webhook endpoints, deliveries, tests, and replays.
  - name: API key usage
    description: Inspect API key metadata and request usage without exposing raw keys.
  - name: Projects
    description: Inspect projects and project-scoped email logs.
  - name: Sending domains
    description: >-
      Register, verify, inspect, and remove sending domains and BIMI
      configuration.
paths:
  /v1/projects/{projectId}/suppressions/export:
    get:
      tags:
        - Suppressions
      summary: Export suppressions
      description: >-
        Exports the entire suppression list for the project as a CSV file. The
        response has `Content-Type: text/csv` and a `Content-Disposition:
        attachment` header suitable for file download. Large lists are streamed.


        ### Requirements


        - **Permission:** `suppressions:read`.

        - **Project access:** the path project must match the API key's project.

        - **HTTP rate limit:** 120 requests per 60 seconds per API key.
      operationId: exportSuppressions
      parameters:
        - name: projectId
          in: path
          description: The project whose suppression list to export.
          required: true
          deprecated: false
          explode: false
          schema:
            type: string
            title: String
      responses:
        '200':
          description: >-
            Streamed CSV attachment with the columns `email`, `reason`, and
            `created_at`.
          headers:
            Content-Disposition:
              description: Attachment filename in the form `suppressions-{projectId}.csv`.
              schema:
                type: string
          content:
            text/csv:
              schema:
                type: string
                description: UTF-8 CSV suppression export.
              example: |
                email,reason,created_at
                "user@example.com","manual","2026-08-25T10:00:00Z"
        '401':
          description: Missing or invalid credentials.
          headers: {}
          content:
            application/problem+json:
              schema:
                $ref: >-
                  #/components/schemas/com.apollodeploy.commons.core.error.ApiProblem
        '403':
          description: >-
            The credential lacks the required permission or cannot access this
            project.
          headers: {}
          content:
            application/problem+json:
              schema:
                $ref: >-
                  #/components/schemas/com.apollodeploy.commons.core.error.ApiProblem
        '404':
          description: Project not found.
          headers: {}
          content:
            application/problem+json:
              schema:
                $ref: >-
                  #/components/schemas/com.apollodeploy.commons.core.error.ApiProblem
        '429':
          description: >-
            The endpoint rate limit was exceeded. Wait for the `Retry-After`
            interval before retrying.
          headers:
            Retry-After:
              description: Whole seconds to wait before retrying.
              schema:
                type: integer
                minimum: 1
          content:
            application/problem+json:
              schema:
                $ref: >-
                  #/components/schemas/com.apollodeploy.commons.core.error.ApiProblem
      deprecated: false
      security:
        - bearerAuth: []
      x-codeSamples:
        - lang: TypeScript
          label: TypeScript
          source: >-
            import { createApolloSignalApiClient } from
            "@apollo-deploy/signal-sdk";


            const signal = createApolloSignalApiClient({ apiKey: "ap_signal_..."
            });


            const result = await signal.suppressions.exportSuppressions(/*
            params */);


            console.log(result);
        - lang: Python
          label: Python
          source: |-
            from apollo_signal import SignalClient

            signal = SignalClient(api_key="ap_signal_...")

            result = signal.suppressions.exportSuppressions(# params)

            print(result)
        - lang: Go
          label: Go
          source: >-
            import signal "github.com/apollo-deploy/signal-sdk-go"


            client := signal.NewClient("ap_signal_...")


            result, err :=
            client.Suppressions.ExportSuppressions(context.Background() /*
            params */)

            if err != nil {
                log.Fatal(err)
            }

            fmt.Println(result)
        - lang: Java
          label: Java
          source: |-
            import com.apollodeploy.signal.SignalClient;

            SignalClient signal = new SignalClient("ap_signal_...");

            var result = signal.suppressions().exportSuppressions(/* params */);
            System.out.println(result);
        - lang: Kotlin
          label: Kotlin
          source: |-
            import com.apollodeploy.signal.SignalClient

            val signal = SignalClient("ap_signal_...")

            val result = signal.suppressions.exportSuppressions(/* params */)
            println(result)
        - lang: Ruby
          label: Ruby
          source: |-
            require "apollo_signal"

            signal = ApolloSignal::Client.new(api_key: "ap_signal_...")

            result = signal.suppressions.exportSuppressions(# params)
            puts result
        - lang: PHP
          label: PHP
          source: |-
            use ApolloSignal\SignalClient;

            $signal = new SignalClient("ap_signal_...");

            $result = $signal->suppressions->exportSuppressions(/* params */);
            var_dump($result);
        - lang: Rust
          label: Rust
          source: >-
            use apollo_signal::SignalClient;


            let signal = SignalClient::new("ap_signal_...");


            let result = signal.suppressions.exportSuppressions(/* params
            */).await?;

            println!("{:?}", result);
        - lang: C#
          label: .NET
          source: >-
            using ApolloSignal;


            var signal = new SignalClient("ap_signal_...");


            var result = await signal.Suppressions.ExportSuppressionsAsync(/*
            params */);

            Console.WriteLine(result);
components:
  schemas:
    com.apollodeploy.commons.core.error.ApiProblem:
      type: object
      properties:
        code:
          type: string
          title: ErrorCode
        detail:
          type: string
          title: String
        errors:
          type: array
          items:
            $ref: >-
              #/components/schemas/com.apollodeploy.commons.core.error.FieldProblem
          title: List<FieldProblem>
        instance:
          type: string
          title: ProblemInstance
        requestId:
          type: string
          title: String
        status:
          type: integer
          format: int32
          title: Int
        title:
          type: string
          title: String
        type:
          type: string
          title: ProblemType
      required:
        - code
        - status
        - title
        - type
      title: ApiProblem
    com.apollodeploy.commons.core.error.FieldProblem:
      type: object
      properties:
        detail:
          type: string
          title: String
        pointer:
          type: string
          title: String
      required:
        - detail
        - pointer
      title: FieldProblem
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        Project-bound Apollo Signal API key. Keys begin with `ap_signal_` and
        must carry the permission shown on the operation.

````