ORCA.108: DKIM signing is set up for all your custom domains.
| ID | ORCA.108 |
| Severity | Medium |
| Suite | ORCA |
| Product | Defender |
| Related products | Exchange Online |
| Feature | Email authentication |
| Security area | Email and collaboration protection |
| Resource type | Domain |
| User impact of fixing | Low |
| Effort to fix | Medium |
| Framework controls | nist-800-53-r5:SC-8 Transmission Confidentiality and Integrity |
| MITRE ATT&CK | T1566, T1684.002 |
| Reads from | Exchange Online |
What this checks and how to fix it
Section titled “What this checks and how to fix it”DKIM signing can help protect the authenticity of your messages in transit and can assist with deliverability of your email messages.
Remediation action
Section titled “Remediation action”Set up DKIM signing to sign your emails.
Related Links
Section titled “Related Links”- Microsoft 365 Defender Portal - DKIM
- Use DKIM to validate outbound email sent from your custom domain in Office 365
Mito check, based on ORCA. Author: soulemike. Open-source licences.
Open-source licences. CIS Benchmark material © Center for Internet Security, Inc.; CISA SCuBA baselines are public domain (CC0).
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