Your organization uses Microsoft Intune for mobile device management. You need to ensure that only devices compliant with security policies can access corporate email. What should you implement?
A Conditional Access policy requiring a compliant device acts as a real-time access gate at authentication, checking the device's compliance state reported by Intune against defined compliance policies. It evaluates signals such as enrollment status, device health attestation, and configured security settings, and blocks or allows access to Microsoft 365 or other cloud apps. This is the appropriate control because it enforces device-level access decisions before any session begins.
Why this answer
A is correct because a Conditional Access policy in Microsoft Entra ID can evaluate device compliance status reported by Intune before granting access to corporate email. By configuring a policy that requires a device to be marked as compliant, only devices that meet your security policies (e.g., encryption, OS version, threat level) will be allowed to authenticate and access email. This directly enforces the requirement that only compliant devices can access corporate email.
Exam trap
The trap here is that candidates often confuse Intune App Protection Policies (MAM) with device-based compliance, but MAM policies protect data at the app level and do not require the device itself to be compliant, so they do not meet the requirement of 'only compliant devices'.
How to eliminate wrong answers
Option B is wrong because Microsoft Purview Data Lifecycle Management governs data retention and deletion policies, not real-time access control based on device compliance. Option C is wrong because Microsoft Defender for Endpoint integration provides threat detection and response on endpoints, but does not itself block access to email based on compliance status; it can feed signals into Conditional Access but is not the primary control. Option D is wrong because Intune App Protection Policies (MAM) protect data within apps without requiring device enrollment or compliance, so they do not ensure that only compliant devices can access email—they apply to apps on any device, including non-compliant ones.