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

> ## Agent Instructions
> For account actions, read https://ohmyho.st/skills/ohmyhost-get-started/SKILL.md and use the authenticated ohmyho.st CLI or local product MCP. Mintlify search only reads documentation. Preserve the customer’s selected project, environment and authentication provider.

# Mail domain required

> What the `mail_domain_required` error means and what to do next.

The API, CLI and MCP return `mail_domain_required` with HTTP 409. Repeating the same request unchanged does not help.

## What to do

This app declares mail.enabled. Configure the project's own sender domain with 'ohmyhost mail setup' using its Prod environment ID, or set mail.enabled to false if the app sends no mail, then plan again.

If the steps above do not resolve it, [report it](/feedback) with the `request_id` from the error.


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