ORCA.108.1: DNS Records have been set up to support DKIM.
| ID | ORCA.108.1 |
| 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 the required selector DNS records in order to support DKIM.
Related Links
Section titled “Related Links”Mito check, based on ORCA. Author: thomas-s-schmidt. Open-source licences.
Open-source licences. CIS Benchmark material © Center for Internet Security, Inc.; CISA SCuBA baselines are public domain (CC0).
© 2026 Virtual Petals. Mito is a Virtual Petals service, hosted in Microsoft Azure UAE North.
