# cPanel API 2 Functions - Email::filterrules

Warning:

The cPanel API 2 system is deprecated. We **strongly** recommend that you use [UAPI](/cpanel/introduction) instead of cPanel API 2.

## Description

This function is deprecated and does not return useful output.

Warning:

We **strongly** recommend that you use [UAPI](/cpanel/introduction/) instead of cPanel API 2. However, no equivalent UAPI function exists.

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Important:
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When you disable the [*Receive Mail* role](https://docs.cpanel.net/knowledge-base/general-systems-administration/how-to-use-server-profiles/#roles), the system **disables** this function.

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## Examples

WHM API (JSON)


```undefined syntaxhighlighter-pre
This function is deprecated.
```

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Note:
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For more information, read our [Calls from the WHM API](/whm/use-whm-api-to-call-cpanel-api-and-uapi) documentation.

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LiveAPI PHP Class


```undefined syntaxhighlighter-pre
This function is deprecated.
```

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Note:
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For more information, read our [Guide to the LiveAPI System](/guides/guide-to-the-liveapi-system/#guide-to-the-liveapi-system).

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LiveAPI Perl Module


```undefined syntaxhighlighter-pre
This function is deprecated.
```

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Note:
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For more information, read our [Guide to the LiveAPI System](/guides/guide-to-the-liveapi-system/#guide-to-the-liveapi-system).

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cPanel Tag System (deprecated)

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Warnings:
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- cPanel tags are **deprecated**. We **strongly** recommend that you **only** use the [LiveAPI](/guides/guide-to-the-liveapi-system) system to call the cPanel APIs. Examples are **only** present in order to help developers move from the old cPanel tag system to our [LiveAPI](/guides/guide-to-the-liveapi-system).
- cPanel API 2 calls that use cPanel tags vary in code syntax and in their output.
- For more information, read our [Deprecated cPanel Tag Usage](/cpanel-api-2/cpanel-api-2-deprecate-cpanel-tag-usage/) documentation.


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Command Line


```undefined syntaxhighlighter-pre
This function is deprecated.
```

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Notes:
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- You **must** URI-encode values.
- `username` represents your account-level username.
- You **must** run the `--user=username` command.
- For more information and additional output options, read our [Guide to cPanel API 2](/cpanel-api-2/) documentation or run the `cpapi2 --help` command.
- If you run CloudLinux™, you **must** use the full path of the `cpapi2` command:

```undefined syntaxhighlighter-pre
/usr/local/cpanel/bin/cpapi2
```


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Output (JSON)


```undefined syntaxhighlighter-pre
{
  "cpanelresult": {
    "apiversion": 2,
    "func": "filterrules",
    "data": [

    ],
    "event": {
      "result": 1
    },
    "module": "Email"
  }
}
```

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Note:
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Use cPanel's *[API Shell](https://docs.cpanel.net/cpanel/advanced/api-shell-for-cpanel)* interface (*cPanel >> Home >> Advanced >> API Shell*) to directly test cPanel API calls.

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## Parameters

This function does not accept parameters.

## Returns

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Return
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