Audit Mailbox Delegation for FedRAMP Compliance
Learn how EXT-08 helps you meet FedRAMP requirements for Microsoft 365 and Entra ID security.
Meeting FedRAMP standards for Microsoft 365 involves implementing controls like EXT-08 (Audit Mailbox Delegation). This guide covers the specific FedRAMP requirements addressed by this control and how to achieve compliance.
How EXT-08 Addresses FedRAMP Requirements
FedRAMP requires organizations to implement controls around audit mailbox delegation. The EXT-08 control provides:
- SendAs permissions on mailboxes are documented
- SendOnBehalf permissions are tracked
- FullAccess mailbox permissions are reviewed
- Delegation changes are monitored
These measures directly support FedRAMP compliance by ensuring proper external security in your Microsoft 365 environment.
Implementation for Compliance
To satisfy FedRAMP requirements with this control:
- **Enable the control** - Follow the manual configuration steps
- **Document your implementation** - Record how the control was configured
- **Maintain evidence** - TrueConfig automatically logs compliance status
- **Monitor continuously** - Track any deviations from the expected state
Evidence Collection
For FedRAMP audits, you'll need to demonstrate:
- Current configuration state
- Historical compliance data
- Remediation actions taken
- Continuous monitoring in place
TrueConfig provides all of this evidence through its audit trail and reporting features.
Why This Control Matters for FedRAMP
Mailbox delegation enables users to send email as others or access their mailboxes. Unauthorized delegation can be used for impersonation attacks or to access sensitive communications without detection.
Implementing EXT-08 is an important step toward FedRAMP compliance. Combined with TrueConfig's continuous monitoring, you can demonstrate ongoing adherence to FedRAMP requirements.
Ready to achieve FedRAMP compliance?
TrueConfig continuously monitors your Microsoft 365 tenant for compliance with FedRAMP requirements, including this control.