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

> Check if a domain or email is blocked. Use when managing the outbound-messaging exclusion list — e.g. honouring a recipient opt-out or reconciling against an external suppression…

# Check if a domain or email is blocked



## OpenAPI

````yaml get /blocklist/domains/check
openapi: 3.1.0
info:
  title: OpenCX API
  description: >

    OpenCX is an AI-powered, all-in-one platform for customer support and
    outbound communications.


    Use this API to manage your OpenCX organization's AI agents, actions,
    conversations, contacts, and more.


    To get started, generate a new API key from the dashboard.


    ## Authentication

    All API endpoints require authentication using a Bearer token. You can
    generate an API key from your OpenCX dashboard.


    ## Rate Limiting

    API requests are rate limited to ensure fair usage. The current limits are:

    - 100 requests per minute for standard endpoints

    - 1000 requests per minute for streaming endpoints


    ## Error Handling

    The API uses standard HTTP status codes and returns detailed error messages
    in the response body.
  version: 1.0-beta
  license:
    name: MIT
    url: https://opensource.org/licenses/MIT
servers:
  - url: https://api.open.cx
    description: Production
security:
  - bearerAuth: []
paths:
  /blocklist/domains/check:
    get:
      summary: Check if a domain or email is blocked
      description: >-
        Check whether a domain is blocked. You can pass either a bare domain
        (e.g. "spam.com") or a full email (e.g. "user@spam.com") — the domain
        will be extracted automatically.
      operationId: checkDomainBlocked
      parameters:
        - schema:
            type: string
          in: query
          name: value
          required: true
          description: A domain (e.g. "spam.com") or email (e.g. "user@spam.com")
      responses:
        '200':
          description: Default Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DomainBlockStatusOutput'
        '500':
          description: Internal Server Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorDto'
components:
  schemas:
    DomainBlockStatusOutput:
      $schema: https://json-schema.org/draft/2020-12/schema
      $id: '#/components/schemas/DomainBlockStatusOutput'
      type: object
      properties:
        is_blocked:
          type: boolean
      required:
        - is_blocked
      additionalProperties: false
    ErrorDto:
      type: object
      properties:
        statusCode:
          type: integer
        message:
          type: string
        error:
          type: string
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT

````