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

# List available mail types

> Returns all available mail types for service of notice delivery including their customizable fields and requirements.



## OpenAPI

````yaml api-reference/cases.yaml post /service-of-notice/mail-types/list
openapi: 3.0.3
info:
  title: cases
  description: >-
    The Cases Service is the main place where all case info lives, including who
    is involved and what files are attached. It lets you create new cases, view
    existing ones, upload documents or files, and manage service of notice
    delivery through multiple channels (mail, email, or manual attestation),
    while notifying other parts of the system when anything changes.
  version: 1.0.0
servers:
  - url: https://cases.platform.arb.inc
security: []
tags:
  - name: /
  - name: cases
  - name: docket
  - name: evidence
  - name: filings
  - name: internal
  - name: invites
  - name: participants
  - name: schemas
  - name: service-of-notice
  - name: tasks
  - name: timetables
paths:
  /service-of-notice/mail-types/list:
    post:
      tags:
        - service-of-notice
      summary: List available mail types
      description: >-
        Returns all available mail types for service of notice delivery
        including their customizable fields and requirements.
      operationId: listMailTypes
      responses:
        '200':
          description: Successfully retrieved mail types
          content:
            application/json:
              schema:
                type: object
                properties:
                  mailTypes:
                    type: array
                    items:
                      type: object
                      properties:
                        id:
                          type: string
                          example: certified_mail
                        displayName:
                          type: string
                          example: Certified Mail
                        description:
                          type: string
                          example: USPS Certified Mail with return receipt
      security:
        - bearerAuth: []
components:
  securitySchemes:
    bearerAuth:
      type: http
      description: access token
      scheme: bearer
      bearerFormat: JWT

````