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

# Joining by Email Domain

> Verify your company's email domain so people who sign up with it find your organization, ask to join, or join at once.

When someone signs up with an email at your company's domain, Sixtyfour can offer them your organization instead of a new empty one. You choose whether they ask an admin first or join your default team at once.

Joining by email domain is part of the Enterprise plan. Organization admins and owners manage it. See [Roles and Permissions](https://docs.sixtyfour.ai/guides/roles-and-permissions.md).

## Verify a domain

1. Go to **Settings → Organization → General** and find **Email domains**.
2. Enter your domain, for example `acme.com`, and select **Add domain**.
3. At your DNS provider, add the TXT record shown:

| Field | Value |
| - | - |
| Type | `TXT` |
| Name | `_sixtyfour-verification` |
| Value | `sixtyfour-verification=<your token>` |

Most DNS providers add your domain to the name for you. If yours asks for the full name, use `_sixtyfour-verification.acme.com`. Entering the full name where the provider adds the domain creates `_sixtyfour-verification.acme.com.acme.com`, which Sixtyfour can't find.

4. Select **Verify**. DNS changes can take a while to appear. If the record isn't found yet, try again later.

Keep the record published. Sixtyfour looks it up again before offering your organization to anyone, so if the record is removed or the domain changes hands, nobody can join through it until the record is back. The domain then shows **Record missing**.

## Choose how people join

A verified domain starts with ask to join:

* Ask to join (default). People who sign up with a confirmed email at the domain see your organization and can ask to join. Your owners get an email for each request, or whoever you send security notices to under **Settings → Notifications**. Any admin or owner approves or declines it under **Settings → Organization → People & teams**. Someone approved joins your default team. Someone declined can't ask again, but an admin can still invite them. Someone who creates their own organization instead withdraws their request.
* Join at once. Turn on the switch beside the domain. People who sign up with a confirmed email at the domain join your default team straight away. If your organization has no seats left, they ask instead, and an admin approves once a seat is free.

Only a confirmed email counts. Someone whose address isn't confirmed yet is never offered your organization.

Someone who has left your organization, or was removed from it, is never offered it again through the domain. To bring them back, invite them.

## Rules for domains

* One organization per domain. Once one organization verifies a domain, no other organization can verify it. If another organization already verified your domain, contact [support@sixtyfour.ai](mailto:support@sixtyfour.ai).
* Unverified domains do nothing. Adding a domain without verifying it offers your organization to nobody.
* Personal and disposable email domains can't be claimed, for example `gmail.com` or `outlook.com`.
* Up to 20 domains per organization.
* Internationalized domains work in either form. You can enter `bücher.de` or `xn--bcher-kva.de`, and addresses written either way match.
* If your plan no longer includes joining by email domain, nobody can join through your domains. You can still turn joining off or remove a domain.
* Removing a domain stops offering your organization to new signups. Requests already sent stay for an admin to decide. To use the domain again, verify it again. If another organization verifies it first, you can't.


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.