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

# Send test email

> **Send a test email to verify connectivity**

Send a test email from a sender account to verify it's working correctly.



## OpenAPI

````yaml /public_openapi.json post /api/public/v1/sender-accounts/{inbox_id}/test-email
openapi: 3.0.3
info:
  title: ColdSend Public API
  description: >-
    Programmatic access to ColdSend for managing cold email campaigns and sender
    accounts.
  version: 1.0.0
  contact:
    name: ColdSend Support
    email: support@coldsend.pro
    url: https://coldsend.pro
servers:
  - url: https://api.coldsend.pro
    description: Production
security:
  - ApiKeyAuth: []
paths:
  /api/public/v1/sender-accounts/{inbox_id}/test-email:
    post:
      tags:
        - Sender Accounts
      summary: Send test email
      description: >-
        **Send a test email to verify connectivity**


        Send a test email from a sender account to verify it's working
        correctly.
      operationId: send_test_email_api_public_v1_sender_accounts__inbox_id__test_email_post
      parameters:
        - name: inbox_id
          in: path
          required: true
          schema:
            type: string
            format: uuid
            description: Sender account ID
            title: Inbox Id
          description: Sender account ID
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SendTestEmailRequest'
      responses:
        '200':
          description: Test email sent
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SendTestEmailResponse'
        '400':
          description: Invalid inbox or recipient
        '401':
          description: Missing or invalid API key
        '403':
          description: Insufficient permissions - requires 'sender_accounts:write' scope
        '404':
          description: Sender account not found
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    SendTestEmailRequest:
      properties:
        recipient_email:
          type: string
          maxLength: 255
          minLength: 5
          title: Recipient Email
          description: Recipient email address for the test email
      type: object
      required:
        - recipient_email
      title: SendTestEmailRequest
      description: Request to send a test email from a sender account.
    SendTestEmailResponse:
      properties:
        success:
          type: boolean
          title: Success
        message:
          type: string
          title: Message
        inbox_id:
          type: string
          format: uuid
          title: Inbox Id
          description: Inbox ID
        inbox_email:
          type: string
          title: Inbox Email
          description: Sender email address
        recipient_email:
          type: string
          title: Recipient Email
          description: Recipient email address
        message_id:
          type: string
          nullable: true
          title: Message Id
          description: Message ID if sent successfully
        sent_at:
          type: string
          format: date-time
          title: Sent At
          description: When the email was sent
      type: object
      required:
        - success
        - message
        - inbox_id
        - inbox_email
        - recipient_email
        - sent_at
      title: SendTestEmailResponse
      description: Response for test email sending.
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-API-Key
      description: API key with format cs_live_xxx

````