No trusted domains in Anti-phishing policy
ORCA.229MediumDefenderAnti-phishing
Part of ORCA · Defender · Anti-phishing · All checks
Invoke-Maester -TestId ORCA.229Overview
Section titled “Overview”Adding domains as trusted in Anti-phishing policy will result in the action for protected domains, protected users or mailbox intelligence protection will be not applied to messages coming from these sender domains. If a trusted domain needs to be added based on organizational requirements it should be reviewed regularly and updated as needed. We also do not recommend adding domains from shared services.
Remediation action
Section titled “Remediation action”Remove allow listing on domains in Anti-phishing policy.
Related Links
Section titled “Related Links”- Microsoft 365 Defender Portal - Anti-phishing
- Recommended settings for EOP and Microsoft Defender for Office 365
Details
Section titled “Details”Every attribute of this check
| Field | Value |
|---|---|
| Test ID | ORCA.229 |
| Severity | Medium |
| Suite | ORCA |
| Product | Defender |
| Related products | Exchange Online |
| Feature | Anti-phishing |
| Area | Email and collaboration protection |
| Resource type | Policy |
| User impact | Low |
| Implementation cost | Medium |
| MITRE ATT&CK | T1566 Phishing, T1684.001 Impersonation |
| Supports controls | nist-800-53-r5:SI-8 |
| PowerShell test | Test-ORCA229 |
| Services | ExchangeOnline |
| Compatible licenses | ATP_ENTERPRISE |
Source
Section titled “Source”- Test:
tests/orca/Test.ORCA.229.ps1 - Documentation:
tests/orca/Test.ORCA.229.md