> ## Documentation Index > Fetch the complete documentation index at: https://inbound.new/docs/llms.txt > Use this file to discover all available pages before exploring further. # Update domain catch-all and subdomain settings > Update catch-all email settings for a domain. Catch-all receives emails sent to any address on your domain. Set includeSubdomains on a verified root domain to also receive mail for every subdomain (publish the returned wildcard MX record); subdomain mail is delivered to the root domain's catch-all endpoint. Domain must be verified first. ## OpenAPI ````yaml https://inbound.new/openapi.json patch /api/e2/domains/{id} openapi: 3.1.0 info: title: Inbound Email API description: >+ # Inbound API The Inbound API allows you to manage email infrastructure programmatically - domains, email addresses, webhooks, and more. ## Authentication All API requests require a Bearer token in the Authorization header: ```bash curl -H "Authorization: Bearer YOUR_API_KEY" \ https://inbound.new/api/e2/domains ``` ## Base URL ``` https://inbound.new/api/e2 ``` ## Quick Start 1. **Create a domain** - Register your domain with Inbound 2. **Configure DNS** - Add the provided DNS records to your domain 3. **Create an email address** - Set up addresses to receive emails 4. **Create an endpoint** - Configure where emails are delivered (webhook, forwarding, etc.) version: 2.0.0 servers: - url: https://inbound.new description: Production API server security: - bearerAuth: [] tags: - name: Webhooks description: Webhooks sent by Inbound to your configured endpoints when events occur. - name: Emails description: >- Send, list, and manage emails. Supports immediate sending, scheduling, replies, and retry functionality. - name: Mail description: >- Inbox and thread views for received emails. Filter by domain, address, or search. - name: Domains description: >- Manage domains for sending and receiving emails. Domains must be verified via DNS before use. - name: Endpoints description: >- Configure where incoming emails are delivered - webhooks, email forwarding, or custom handlers. - name: Email Addresses description: Create and manage email addresses on your verified domains. - name: Attachments description: Download email attachments using authenticated requests. paths: /api/e2/domains/{id}: patch: tags: - Domains summary: Update domain catch-all and subdomain settings description: >- Update catch-all email settings for a domain. Catch-all receives emails sent to any address on your domain. Set includeSubdomains on a verified root domain to also receive mail for every subdomain (publish the returned wildcard MX record); subdomain mail is delivered to the root domain's catch-all endpoint. Domain must be verified first. operationId: patchApiE2DomainsById parameters: - name: id in: path required: true schema: type: string requestBody: required: true content: application/json: schema: type: object properties: isCatchAllEnabled: type: boolean catchAllEndpointId: nullable: true anyOf: - type: string - type: 'null' includeSubdomains: type: boolean application/x-www-form-urlencoded: schema: type: object properties: isCatchAllEnabled: type: boolean catchAllEndpointId: nullable: true anyOf: - type: string - type: 'null' includeSubdomains: type: boolean multipart/form-data: schema: type: object properties: isCatchAllEnabled: type: boolean catchAllEndpointId: nullable: true anyOf: - type: string - type: 'null' includeSubdomains: type: boolean responses: '200': description: Response for status 200 content: application/json: schema: type: object properties: id: type: string domain: type: string status: type: string isCatchAllEnabled: type: boolean catchAllEndpointId: nullable: true anyOf: - type: string - type: 'null' catchAllEndpoint: nullable: true anyOf: - type: object properties: id: type: string name: type: string type: type: string isActive: type: boolean required: - id - name - type - isActive - type: 'null' includeSubdomains: type: boolean subdomainDnsRecords: type: array items: type: object properties: type: type: string name: type: string value: type: string description: type: string isRequired: type: boolean required: - type - name - value - isRequired updatedAt: format: date-time type: string required: - id - domain - status - isCatchAllEnabled - catchAllEndpointId - includeSubdomains - subdomainDnsRecords - updatedAt '400': description: Response for status 400 content: application/json: schema: type: object properties: error: type: string code: type: string required: - error '401': description: Response for status 401 content: application/json: schema: type: object properties: error: type: string code: type: string required: - error '404': description: Response for status 404 content: application/json: schema: type: object properties: error: type: string code: type: string required: - error '409': description: Response for status 409 content: application/json: schema: type: object properties: error: type: string code: type: string required: - error '500': description: Response for status 500 content: application/json: schema: type: object properties: error: type: string code: type: string required: - error components: securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: API Key description: >- Your Inbound API key. Include it in the Authorization header as: Bearer ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.