Zero Trust Compliance
EXT-08Medium

Audit Mailbox Delegation for Zero Trust Compliance

Learn how EXT-08 helps you meet Zero Trust requirements for Microsoft 365 and Entra ID security.

Zero Trust compliance requires implementing specific controls around audit mailbox delegation. This page explains how TrueConfig's EXT-08 control helps you meet Zero Trust requirements in your Microsoft 365 environment.

How EXT-08 Addresses Zero Trust Requirements

Zero Trust 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 Zero Trust compliance by ensuring proper external security in your Microsoft 365 environment.

Implementation for Compliance

To satisfy Zero Trust 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 Zero Trust 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 Zero Trust

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 Zero Trust compliance. Combined with TrueConfig's continuous monitoring, you can demonstrate ongoing adherence to Zero Trust requirements.

Ready to achieve Zero Trust compliance?

TrueConfig continuously monitors your Microsoft 365 tenant for compliance with Zero Trust requirements, including this control.