Telnyx

Telnyx Email Webhooks API

Per-domain webhook endpoints with event subscriptions

GitHub OpenAPI

Operations 5

GET /email_domains/{domain_id}/webhooks List webhooks for an email domain #
POST /email_domains/{domain_id}/webhooks Create a webhook for an email domain #
DELETE /email_domains/{domain_id}/webhooks/{id} Delete a webhook #
GET /email_domains/{domain_id}/webhooks/{id} Retrieve a webhook #
PATCH /email_domains/{domain_id}/webhooks/{id} Update a webhook #

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/telnyx/refs/heads/main/openapi/telnyx-email-webhooks-api-openapi.yml

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OpenAPI Specification

telnyx-email-webhooks-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  version: 2.0.0
  x-latency-category: responsive
  x-endpoint-cost: light
  title: Telnyx Email Webhooks API
  description: SIP trunking, SMS, MMS, Call Control and Telephony Data Services.
  contact:
    email: support@telnyx.com
servers:
- url: https://api.telnyx.com/v2
  description: Version 2.0.0 of the Telnyx API
security:
- bearerAuth: []
tags:
- name: Email Webhooks
  description: Per-domain webhook endpoints with event subscriptions
paths:
  /email_domains/{domain_id}/webhooks:
    get:
      tags:
      - Email Webhooks
      summary: List webhooks for an email domain
      operationId: listEmailDomainWebhooks
      parameters:
      - $ref: '#/components/parameters/EmailDomainDomainId'
      - $ref: '#/components/parameters/email_PageNumber'
      - $ref: '#/components/parameters/DomainsPageSize'
      - name: sort
        in: query
        description: Field to sort by. Prefix with `-` for descending order.
        required: false
        schema:
          type: string
          enum:
          - created_at
          - -created_at
      responses:
        '200':
          description: A paginated list of email webhooks
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EmailWebhookListResponse'
        '404':
          $ref: '#/components/responses/email_NotFound'
        '500':
          $ref: '#/components/responses/InternalServerError'
      description: Returns a paginated list of webhook subscriptions scoped to the email domain. Results can be sorted by creation time.
    post:
      tags:
      - Email Webhooks
      summary: Create a webhook for an email domain
      description: Creates a webhook endpoint subscribed to a specific allowlist of event types. Both `email.*` events (published by email-api) and `email_domain.*` events (published by this service) flow through the same webhooks.
      operationId: createEmailDomainWebhook
      parameters:
      - $ref: '#/components/parameters/EmailDomainDomainId'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateEmailWebhookRequest'
            example:
              url: https://example.com/webhooks/email
              events:
              - email.sent
              - email.delivered
              - email.bounced
      responses:
        '201':
          description: Email webhook created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EmailWebhookResponse'
        '404':
          $ref: '#/components/responses/email_NotFound'
        '422':
          $ref: '#/components/responses/ValidationFailed'
        '500':
          $ref: '#/components/responses/InternalServerError'
  /email_domains/{domain_id}/webhooks/{id}:
    delete:
      tags:
      - Email Webhooks
      summary: Delete a webhook
      operationId: deleteEmailDomainWebhook
      parameters:
      - $ref: '#/components/parameters/EmailDomainDomainId'
      - $ref: '#/components/parameters/WebhookId'
      responses:
        '200':
          description: Email webhook deleted
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EmailWebhookResponse'
        '404':
          $ref: '#/components/responses/email_NotFound'
        '500':
          $ref: '#/components/responses/InternalServerError'
      description: Deletes the webhook subscription identified by ID within the specified email domain and returns the deleted subscription.
    get:
      tags:
      - Email Webhooks
      summary: Retrieve a webhook
      operationId: getEmailDomainWebhook
      parameters:
      - $ref: '#/components/parameters/EmailDomainDomainId'
      - $ref: '#/components/parameters/WebhookId'
      responses:
        '200':
          description: Email webhook details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EmailWebhookResponse'
        '404':
          $ref: '#/components/responses/email_NotFound'
        '500':
          $ref: '#/components/responses/InternalServerError'
      description: Returns the webhook subscription identified by ID within the specified email domain.
    patch:
      tags:
      - Email Webhooks
      summary: Update a webhook
      description: Update a webhook's URL and/or event subscription. A webhook is bound to its domain — `domain_id` is not mutable.
      operationId: updateEmailDomainWebhook
      parameters:
      - $ref: '#/components/parameters/EmailDomainDomainId'
      - $ref: '#/components/parameters/WebhookId'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/UpdateEmailWebhookRequest'
            example:
              events:
              - email.sent
              - email.delivered
              - email.opened
      responses:
        '200':
          description: Email webhook updated
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EmailWebhookResponse'
        '404':
          $ref: '#/components/responses/email_NotFound'
        '422':
          $ref: '#/components/responses/ValidationFailed'
        '500':
          $ref: '#/components/responses/InternalServerError'
components:
  schemas:
    OffsetPaginationMeta:
      type: object
      required:
      - page_number
      - page_size
      - total_pages
      - total_results
      properties:
        page_number:
          type: integer
          minimum: 1
        page_size:
          type: integer
          minimum: 1
        total_pages:
          type: integer
          minimum: 0
        total_results:
          type: integer
          minimum: 0
    EmailWebhookEvent:
      type: string
      description: Event types accepted by domain webhook subscriptions. Allowlists match the legacy event_type, not canonical_event_type. Of the 22 accepted types, email.sending is stored but intentionally not published. Cancellation, daily-limit failures, and system failures publish after commit when a matching domain webhook is configured.
      enum:
      - email.scheduled
      - email.sandbox
      - email.queued
      - email.sending
      - email.sent
      - email.delivered
      - email.deferred
      - email.bounced
      - email.failed
      - email.complained
      - email.opened
      - email.clicked
      - email.unsubscribed
      - email.received
      - email.cancelled
      - email.daily_limit_exceeded
      - email_domain.created
      - email_domain.verified
      - email_domain.degraded
      - email_domain.suspended
      - email_domain.deleted
      - email_domain.dkim_rotated
    UpdateEmailWebhookRequest:
      type: object
      properties:
        url:
          type: string
          format: uri
        events:
          type: array
          minItems: 1
          items:
            $ref: '#/components/schemas/EmailWebhookEvent'
    EmailWebhookResponse:
      type: object
      required:
      - data
      properties:
        data:
          $ref: '#/components/schemas/EmailWebhook'
    DomainsErrorResponse:
      type: object
      required:
      - errors
      properties:
        errors:
          type: array
          items:
            $ref: '#/components/schemas/email_Error'
    EmailWebhookListResponse:
      type: object
      required:
      - data
      - meta
      properties:
        data:
          type: array
          items:
            $ref: '#/components/schemas/EmailWebhook'
        meta:
          $ref: '#/components/schemas/OffsetPaginationMeta'
    email_Error:
      type: object
      required:
      - code
      - title
      - detail
      properties:
        code:
          type: string
          enum:
          - '10001'
          - '10015'
          - '500'
          - '10007'
          - '10008'
          - '10020'
          - '40901'
        title:
          type: string
        detail:
          type: string
        source:
          type: object
          properties:
            pointer:
              type: string
    EmailWebhook:
      type: object
      required:
      - id
      - record_type
      - url
      - events
      - domain_id
      - created_at
      - updated_at
      properties:
        id:
          type: string
          format: uuid
        record_type:
          type: string
          enum:
          - email_webhook
        url:
          type: string
          format: uri
          description: HTTPS endpoint to deliver subscribed events to.
        events:
          type: array
          minItems: 1
          items:
            $ref: '#/components/schemas/EmailWebhookEvent'
          description: 'Allowlist of event types delivered to this webhook. At least one event is required — there is no default-to-all.

            '
        domain_id:
          type: string
          format: uuid
        created_at:
          type: string
          format: date-time
        updated_at:
          type: string
          format: date-time
      example:
        id: 123e4567-e89b-12d3-a456-426614174003
        record_type: email_webhook
        url: https://example.com/webhooks/email
        events:
        - email.sent
        - email.delivered
        - email.bounced
        domain_id: 123e4567-e89b-12d3-a456-426614174000
        created_at: '2026-06-18T12:00:00Z'
        updated_at: '2026-06-18T12:00:00Z'
    CreateEmailWebhookRequest:
      type: object
      required:
      - url
      - events
      properties:
        url:
          type: string
          format: uri
          description: HTTPS endpoint to deliver subscribed events to.
        events:
          type: array
          minItems: 1
          items:
            $ref: '#/components/schemas/EmailWebhookEvent'
          description: At least one event type is required.
  parameters:
    WebhookId:
      name: id
      in: path
      required: true
      description: Email webhook UUID
      schema:
        type: string
        format: uuid
    email_PageNumber:
      name: page[number]
      in: query
      required: false
      description: Page number to return (offset pagination)
      schema:
        type: integer
        minimum: 1
        default: 1
    EmailDomainDomainId:
      name: domain_id
      in: path
      required: true
      description: Email domain UUID
      schema:
        type: string
        format: uuid
    DomainsPageSize:
      name: page[size]
      in: query
      required: false
      description: Number of records per page
      schema:
        type: integer
        minimum: 1
        maximum: 100
        default: 25
  responses:
    ValidationFailed:
      description: Validation failed
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/DomainsErrorResponse'
          example:
            errors:
            - code: '10015'
              title: Validation Failed
              detail: domain is invalid
              source:
                pointer: /data/attributes/domain
    InternalServerError:
      description: Internal server error
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/DomainsErrorResponse'
          example:
            errors:
            - code: '500'
              title: Internal Server Error
              detail: An unexpected error occurred
    email_NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/DomainsErrorResponse'
          example:
            errors:
            - code: '10001'
              title: Not Found
              detail: The requested email domain was not found
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: API key
      description: 'Telnyx API key supplied as `Authorization: Bearer <token>`. In production, auth may be validated by the API gateway and forwarded via Telnyx auth headers.'
    Payment:
      type: apiKey
      in: header
      name: Authorization
      description: 'Machine Payment Protocol credential used on paid retries, sent as `Authorization: Payment ...`. Obtained by paying a challenge returned in the `WWW-Authenticate` header of a 402 response. This is not a Telnyx API key; initial challenge requests use standard bearer authentication instead.'
    agent-memory_bearerAuth:
      type: http
      scheme: bearer
      description: Telnyx API key
    bearerAuth:
      type: http
      scheme: bearer
    branded-calling_bearerAuth:
      type: http
      scheme: bearer
      description: Telnyx API key. Generate one at https://portal.telnyx.com/#/app/api-keys.
    collections_bearerAuth:
      type: http
      scheme: bearer
      description: Telnyx API key. Collections and results are automatically scoped to the authenticated user's organization.
    number-reputation_bearerAuth:
      type: http
      scheme: bearer
      description: Telnyx API key. Generate one at https://portal.telnyx.com/#/app/api-keys.
    oauthClientAuth:
      type: oauth2
      flows:
        clientCredentials:
          tokenUrl: https://api.telnyx.com/v2/oauth/token
          scopes:
            admin: Administrative access to Telnyx resources
        authorizationCode:
          authorizationUrl: https://api.telnyx.com/v2/oauth/authorize
          tokenUrl: https://api.telnyx.com/v2/oauth/token
          refreshUrl: https://api.telnyx.com/v2/oauth/token
          scopes:
            admin: Administrative access to Telnyx resources
      description: OAuth 2.0 authentication for Telnyx API and MCP integrations
    outbound-voice-profiles_bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
    pronunciation-dicts_bearerAuth:
      type: http
      scheme: bearer
      description: Telnyx API v2 key. Obtain from https://portal.telnyx.com
    rcs-registration_bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: API key
    stored-payment-transactions_bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
    transcriptions-search_bearerAuth:
      type: http
      scheme: bearer
      description: Telnyx API key. Results are automatically scoped to the authenticated user's organization.
    web-search_bearerAuth:
      type: http
      scheme: bearer
      description: Telnyx API key
x-service-info:
  categories:
  - communication
  - developer-tools
  docs:
    apiReference: https://developers.telnyx.com
    homepage: https://telnyx.com
    llms: https://telnyx.com/llms.txt