JustEmails

JustEmails Mailboxes API

The Mailboxes API from JustEmails — 4 operation(s) for mailboxes.

GitHub OpenAPI

Operations 7

GET /api/v1/domains/{id}/mailboxes List mailboxes on a domain #
POST /api/v1/domains/{id}/mailboxes Create a mailbox #
GET /api/v1/mailboxes/{id}/folders Get Folders #
POST /api/v1/mailboxes/{id}/folders Create Folders #
PATCH /api/v1/mailboxes/{id}/folders/{folderId} Update Folders #
DELETE /api/v1/mailboxes/{id}/folders/{folderId} Delete Folders #
POST /api/v1/mailboxes/{id}/folders/reorder Create Reorder #

Specifications

⚙
OpenAPI
https://artifacts.apis.io/justemails-app/openapi/justemails-app-mailboxes-api-openapi.yml

Schemas & Data

📊
JSONSchema
https://artifacts.apis.io/justemails-app/json-schema/justemails-app-send-transactional-request-schema.json
📊
JSONSchema
https://artifacts.apis.io/justemails-app/json-schema/justemails-app-email-schema.json
📊
JSONSchema
https://artifacts.apis.io/justemails-app/json-schema/justemails-app-message-schema.json
📊
JSONSchema
https://artifacts.apis.io/justemails-app/json-schema/justemails-app-mailbox-schema.json
📊
JSONSchema
https://artifacts.apis.io/justemails-app/json-schema/justemails-app-domain-schema.json

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OpenAPI Specification

justemails-app-mailboxes-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: JustEmails Mailboxes API
  version: 1.0.0
  description: REST API for JustEmails — unlimited-domain email hosting + transactional email. This spec is consumable by ChatGPT Custom GPTs, Zapier, n8n, Make, and any OpenAPI-aware tool. The same capabilities are also exposed via MCP at https://mcp.justemails.app/mcp for AI clients like Claude Desktop / Cursor / VS Code.
  contact:
    name: JustEmails
    url: https://justemails.app
  license:
    name: Proprietary
  termsOfService: https://justemails.app/terms
servers:
- url: https://justemails.app
  description: Production
security:
- bearerAuth: []
tags:
- name: Mailboxes
paths:
  /api/v1/domains/{id}/mailboxes:
    get:
      operationId: listMailboxes
      summary: List mailboxes on a domain
      tags:
      - Mailboxes
      parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
          format: uuid
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/Mailbox'
                  meta:
                    type: object
                    additionalProperties: true
                required:
                - data
    post:
      operationId: createMailbox
      summary: Create a mailbox
      tags:
      - Mailboxes
      parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
          format: uuid
      responses:
        '200':
          description: OK
  /api/v1/mailboxes/{id}/folders:
    get:
      operationId: getmailboxesByIdFolders
      summary: Get Folders
      tags:
      - Mailboxes
      parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: object
                    additionalProperties: true
                  meta:
                    type: object
                    additionalProperties: true
                required:
                - data
        '401':
          description: Missing or invalid API key
        4XX:
          description: Error
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: object
                    properties:
                      code:
                        type: string
                      message:
                        type: string
                      details: {}
                    required:
                    - code
                    - message
    post:
      operationId: postmailboxesByIdFolders
      summary: Create Folders
      tags:
      - Mailboxes
      parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
      requestBody:
        required: false
        content:
          application/json:
            schema:
              type: object
              additionalProperties: true
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: object
                    additionalProperties: true
                  meta:
                    type: object
                    additionalProperties: true
                required:
                - data
        '401':
          description: Missing or invalid API key
        4XX:
          description: Error
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: object
                    properties:
                      code:
                        type: string
                      message:
                        type: string
                      details: {}
                    required:
                    - code
                    - message
  /api/v1/mailboxes/{id}/folders/{folderId}:
    patch:
      operationId: patchmailboxesByIdFoldersByFolderId
      summary: Update Folders
      tags:
      - Mailboxes
      parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
      - name: folderId
        in: path
        required: true
        schema:
          type: string
      requestBody:
        required: false
        content:
          application/json:
            schema:
              type: object
              additionalProperties: true
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: object
                    additionalProperties: true
                  meta:
                    type: object
                    additionalProperties: true
                required:
                - data
        '401':
          description: Missing or invalid API key
        4XX:
          description: Error
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: object
                    properties:
                      code:
                        type: string
                      message:
                        type: string
                      details: {}
                    required:
                    - code
                    - message
    delete:
      operationId: deletemailboxesByIdFoldersByFolderId
      summary: Delete Folders
      tags:
      - Mailboxes
      parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
      - name: folderId
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: object
                    additionalProperties: true
                  meta:
                    type: object
                    additionalProperties: true
                required:
                - data
        '401':
          description: Missing or invalid API key
        4XX:
          description: Error
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: object
                    properties:
                      code:
                        type: string
                      message:
                        type: string
                      details: {}
                    required:
                    - code
                    - message
  /api/v1/mailboxes/{id}/folders/reorder:
    post:
      operationId: postmailboxesByIdFoldersReorder
      summary: Create Reorder
      tags:
      - Mailboxes
      parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
      requestBody:
        required: false
        content:
          application/json:
            schema:
              type: object
              additionalProperties: true
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: object
                    additionalProperties: true
                  meta:
                    type: object
                    additionalProperties: true
                required:
                - data
        '401':
          description: Missing or invalid API key
        4XX:
          description: Error
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: object
                    properties:
                      code:
                        type: string
                      message:
                        type: string
                      details: {}
                    required:
                    - code
                    - message
components:
  schemas:
    Mailbox:
      type: object
      properties:
        id:
          type: string
          format: uuid
        domainId:
          type: string
          format: uuid
        address:
          type: string
        displayName:
          type:
          - string
          - 'null'
        mailboxType:
          type: string
          enum:
          - shared
          - personal
        hasCustomPassword:
          type: boolean
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: opaque
      description: 'Create an API key at https://justemails.app/settings/api-keys and pass as `Authorization: Bearer <key>`.'
externalDocs:
  description: Full MCP tool catalog + integration guides
  url: https://mcp.justemails.app/docs