# Each domain has a Anti-phishing policy applied to it, or the default policy is being used

Microsoft Defender for Office 365 Anti-phishing policies are applied using rules.

Source: https://maester.dev/docs/tests/ORCA.230

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<div class="test-byline"><div class="test-byline-avatars"><a class="test-byline-avatar test-byline-avatar--author" href="/contributors/soulemike" title="Michael Soule · Original author"><img src="https://github.com/soulemike.png" alt="Michael Soule" width="28" height="28" loading="lazy" decoding="async" /></a></div><div class="test-byline-meta"><span class="test-byline-text">Contributed by <a href="/contributors/soulemike">Michael Soule</a></span><a class="test-byline-link" href="/contributors">All contributors →</a></div></div>

<p class="test-part">Part of <a href="/docs/tests/orca">ORCA</a> · Defender · Anti-phishing · <a href="/docs/tests">All checks</a></p>

```powershell title="Run this check"
Invoke-Maester -TestId ORCA.230
```

## Overview

Microsoft Defender for Office 365 Anti-phishing policies are applied using rules. The default anti-phishing policy applies in the absence of a custom policy. When creating custom policies, there may be duplication of settings and depending on the rules and priority, some policies or settings may not even apply. It's important in this circumstance to check that the desired settings are applied to the right users.

#### Remediation action

Check your anti-phishing policies for duplicate rules. Some policies and settings may not be applying.

#### Related Links

* [Microsoft 365 Defender Portal - Antiphishing policies](https://security.microsoft.com/antiphishing)
* [Order and precedence of email protection](https://aka.ms/orca-atpp-docs-4)
* [Recommended settings for EOP and Microsoft Defender for Office 365](https://aka.ms/orca-atpp-docs-7)
* [Setting up antiphishing policies](https://aka.ms/orca-atpp-docs-2)

## Details

<details>
<summary>Every attribute of this check</summary>

| Field | Value |
| --- | --- |
| Test ID | ORCA.230 |
| Severity | Low |
| Suite | ORCA |
| Product | Defender |
| Related products | Exchange Online |
| Feature | Anti-phishing |
| Area | Email and collaboration protection |
| Resource type | Domain |
| User impact | Low |
| Implementation cost | Low |
| MITRE ATT&CK | None |
| Supports controls | nist-800-53-r5:SI-8 |
| PowerShell test | [Test-ORCA230](https://github.com/maester365/maester/blob/main/tests/orca/Test.ORCA.230.ps1) |
| Services | ExchangeOnline |
| Compatible licenses | ATP_ENTERPRISE |

</details>

## Source

- Test: [`tests/orca/Test.ORCA.230.ps1`](https://github.com/maester365/maester/blob/main/tests/orca/Test.ORCA.230.ps1)
- Documentation: [`tests/orca/Test.ORCA.230.md`](https://github.com/maester365/maester/blob/main/tests/orca/Test.ORCA.230.md)