Securing Exchange ActiveSync with Certificate-Based Authentication

Securing mobile access to on-premises mailboxes requires moving beyond basic password authentication to prevent credential phishing and unauthorized device access. This course provides a clear, step-by-step written guide to planning and implementing certificate-based authentication (CBA) to protect your infrastructure. You will learn how to transition from legacy authentication methods to a robust, modern security posture that aligns with zero-trust principles. By completing this course, you will understand how to design and execute a secure authentication flow that connects mobile clients, cloud identity providers, and your on-premises environment. You will gain the confidence to configure, test, and troubleshoot secure device enrollment and access control policies. What you'll learn: - Understand the core concepts of certificate-based authentication and public key infrastructure (PKI) - Configure secure connection paths between mobile devices and on-premises Exchange servers - Integrate cloud-based identity verification with on-premises directory services - Apply modern zero-trust security policies to restrict access to trusted, compliant devices - Troubleshoot common certificate validation, trust chain, and connection issues Starting with fundamental security concepts and PKI prerequisites, this course guides you through the architectural design, configuration steps, and validation techniques required for a successful deployment. It is designed for IT administrators and systems engineers who are new to certificate management and want to establish secure, passwordless authentication for their messaging environments. No prior experience with advanced certificate authority deployment is required. Build a more secure infrastructure today.