Description:

Verifies that the DMARC message rejection option is set to p=reject.

Why:

Of the three policy options (i.e., none, quarantine, and reject), reject provides the strongest protection. Reject is the level of protection required by BOD 18-01 for FCEB departments and agencies.

Configured: The DMARC message rejection option is set to p=reject.

Not Configured: The DMARC message rejection options is not set to p=reject.

Scoring: Contributes up to 1 point to the Posture Recommendations score.

Category: Exchange

Microsoft Licensing: Works with Basic licensing

Remediation in Augmentt: No in-product remediation — remediate in the Microsoft admin portals.

Compliance Frameworks:

  • CISA SCuBA — MS.EXO.4.2

  • CIS Microsoft 365 Benchmark v6 (Level 1) — 2.1.9

  • CIS Microsoft 365 Benchmark v7 (Level 1) — 2.1.9

Microsoft documentation: