# Fix "Domain already claimed by another organization" error

> Release a custom domain from another Mintlify project or request help when adding it fails because another project or organization already holds it.

When you try to add a custom domain that is registered to another Mintlify project, the dashboard or [`mint add-domain`](/guides/get-started-cli-commands#mint-add-domain) returns one of these errors:

- `Domain is already in use by another deployment in your organization` means the domain belongs to another project you can access.
- `Domain is already claimed by another organization` means the domain belongs to a project in a different Mintlify organization. This can happen when a trial account, unused organization, or project created with another work email still holds the domain.

Only one project can hold a custom domain at a time. Release the domain from the current project before you add it to the destination project.

## Release the domain yourself

If you can access the organization that holds the domain:

1. Sign in to the [dashboard](https://app.mintlify.com/) and switch to the organization that holds the domain.
2. Open the [Custom domain setup](https://app.mintlify.com/settings/project/custom-domain) page for the project that holds the domain.
3. Click the :icon[trash-2]{icon="trash-2"} remove icon next to the domain and confirm the removal.
4. Switch to the destination organization and add the domain from its [Custom domain setup](https://app.mintlify.com/settings/project/custom-domain) page.

Your DNS records remain valid as long as the `CNAME` still points to `cname.mintlify.builders`. If you also want to retire the old project, delete it from the **Danger zone** section of the [Organization](https://app.mintlify.com/settings/organization/general) settings page. See [Delete a project](/guides/create-content-deploy-deployments#delete-a-project).

## Request a release from support

If you cannot access the organization that holds the domain, email \[support@mintlify.com]\(mailto\:support@mintlify.com) with proof that you own it. This can happen when the organization belongs to a former employee, uses a personal email you no longer access, or was abandoned without releasing the domain.

Include:

- The custom domain, like `docs.example.com`.
- The destination organization and project where you want to add it, formatted as `app.mintlify.com/<your-org>/<your-project>`.
- Any email addresses or organization names that might hold the domain.
- Proof that you control the domain, such as a screenshot from your DNS provider's admin console. Support may instead ask you to add a verification `TXT` record.

After support releases the domain, add it from the dashboard or with [`mint add-domain`](/guides/get-started-cli-commands#mint-add-domain).

## Related topics

- [Mintlify CLI command reference](/guides/get-started-cli-commands)
- [Deploy at a subpath with Cloudflare Workers](/guides/manage-your-site-deploy-cloudflare)
- [Migrate from another platform](/guides/get-started-migration-manual)

## Related pages

- [Admin](./admin-index.md)
- [Agent](./agent-2-index.md)
- [Agent](./agent-index.md)
- [Agent-ready content](./agent-ready-content-index.md)
- [AI](./ai-index.md)
- [Analytics](./analytics-index.md)
- [API docs](./api-docs-index.md)
- [API reference](./api-reference-index.md)
- [Assistant](./assistant-2-index.md)
- [Assistant](./assistant-index.md)

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