---
title: "oz0 tenant mail-domains add"
description: "The mail domains are where the mail agents send through the email plugin may go: the tenant's own, such as acme.se."
canonical_url: "https://docs.oz0.ai/reference/cli/oz0/tenant/mail-domains/add"
---
# oz0 tenant mail-domains add

> The mail domains are where the mail agents send through the email plugin may go: the tenant's own, such as acme.se.

For: Operators and developers looking up a command.

The mail domains are where the mail agents send through the email plugin may go: the tenant's own, such as acme.se. A tenant has none until an admin adds them, so no mail is sent until then. Each domain counts alone: ops.acme.se is a domain of its own, and no wildcard is taken. A recipient outside them is refused, and the message is not sent, unless the tenant allows other domains (oz0 tenant mail-outside).

Adding a domain lets mail go to more people, so it takes --reason and, in a tenant with four eyes on, waits for another admin; removing one takes a reason too and applies at once. Admins of the tenant may change them; each change is audited (tenant.mail_domains).

## Usage

```bash
oz0 tenant mail-domains add <tenant> <domain> [<domain>...] [flags]
```

## Flags

<table>
<thead>
  <tr>
    <th>
      Flag
    </th>
    
    <th>
      Type
    </th>
    
    <th>
      Default
    </th>
    
    <th>
      Description
    </th>
  </tr>
</thead>

<tbody>
  <tr>
    <td>
      <code>
        --decision-ref
      </code>
    </td>
    
    <td>
      string
    </td>
    
    <td>
      
    </td>
    
    <td>
      the decision or case the change follows, such as a case number (at most 200 characters)
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        --json
      </code>
    </td>
    
    <td>
      bool
    </td>
    
    <td>
      
    </td>
    
    <td>
      print JSON instead of a table
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        --reason
      </code>
    </td>
    
    <td>
      string
    </td>
    
    <td>
      
    </td>
    
    <td>
      why, required for every governance change (at most 500 characters; default $OZ0_REASON); the audit log keeps it
    </td>
  </tr>
</tbody>
</table>

## Inherited flags

<table>
<thead>
  <tr>
    <th>
      Flag
    </th>
    
    <th>
      Type
    </th>
    
    <th>
      Default
    </th>
    
    <th>
      Description
    </th>
  </tr>
</thead>

<tbody>
  <tr>
    <td>
      <code>
        --context
      </code>
    </td>
    
    <td>
      string
    </td>
    
    <td>
      <code>
        $OZ0_CONTEXT or &lt;config dir>/orchestrator-zero/context.json
      </code>
    </td>
    
    <td>
      CLI context file written by server init
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        --log-level
      </code>
    </td>
    
    <td>
      string
    </td>
    
    <td>
      <code>
        info
      </code>
    </td>
    
    <td>
      log level: debug, info, warn or error
    </td>
  </tr>
</tbody>
</table>

See [all `oz0` commands](https://docs.oz0.ai/reference/cli/oz0) and the [global flags](https://docs.oz0.ai/reference/cli/oz0#global-flags).


## Sitemap

See the full [sitemap](https://docs.oz0.ai/sitemap.md) for all pages.