MT.1151: Email Scanning should be enabled.
| ID | MT.1151 |
| Severity | Medium |
| Suite | Mito |
| Product | Defender |
| Related products | Intune |
| Feature | Endpoint antivirus |
| Security area | Devices and endpoints |
| Resource type | Policy |
| User impact of fixing | Low |
| Effort to fix | Low |
| Framework controls | nist-800-53-r5:SI-3 Malicious Code Protection |
| MITRE ATT&CK | T1566.001 |
| Reads from | Microsoft Graph |
What this checks and how to fix it
Section titled “What this checks and how to fix it”Verify that email scanning is enabled for Exchange queues protection.
Disabled email scanning allows malware to enter through Exchange message queues.
Remediation action:
Section titled “Remediation action:”- Open Microsoft Endpoint Manager > Endpoint Security > Antivirus
- Edit the relevant Microsoft Defender Antivirus policy
- Enable Allow Email Scanning
Related links
Section titled “Related links”Mito check. Author: bdrogja. 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.
