ORCA.106: Quarantine retention period is 30 days.
| ID | ORCA.106 |
| Severity | Low |
| Suite | ORCA |
| Product | Defender |
| Related products | Exchange Online |
| Feature | Anti-spam |
| Security area | Email and collaboration protection |
| Resource type | Policy |
| User impact of fixing | Low |
| Effort to fix | Low |
| Reads from | Exchange Online |
What this checks and how to fix it
Section titled “What this checks and how to fix it”You can view, release, download, delete and report false positive quarantined email messages or files captured by Microsoft Defender for Office 365 (MDO) for SharePoint Online, OneDrive for Business, and Microsoft Teams in Office 365. Keep messages in the quarantine for 30 days to allow enough time for further investigation. This is the default value and also the maximum.
Remediation action
Section titled “Remediation action”Configure the Quarantine retention period to 30 days.
Related Links
Section titled “Related Links”- Manage quarantined messages and files as an administrator in Office 365
- Microsoft 365 Defender Portal - Anti-spam settings
- Recommended settings for EOP and Office 365 Microsoft Defender for Office 365 security
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).
© 2026 Virtual Petals. Mito is a Virtual Petals service, hosted in Microsoft Azure UAE North.