Exchange Server 2019 CU13: The Modern Baseline
Maintaining a resilient messaging infrastructure requires staying aligned with Microsoft’s latest servicing models. Exchange Server 2019 Cumulative Update 13 (CU13) is more than just a routine patch; it is a critical baseline for security and the primary gateway toward the Exchange Subscription Edition (SE).
Exchange Server 2019 CU13: Key Highlights
- Build Version: 15.02.1258.012 (2023 H1 Update).
- Modern Auth: Enables OAuth 2.0 for on-premises environments using ADFS.
- Config Preservation: Automatically backs up and restores custom web.config files.
- Extended Protection: Enhanced security against NTLM relay attacks.
- OS Support: Standardized for Windows Server 2019/2022 and ready for SE.
🛠️ Basic Installation Series
Exchange 2019 CU13: AD Preparation & Prerequisites
Deploying Exchange 2019 CU13? Learn how to prepare your AD Forest and Domain, verify object versions like 16761, and configure post-install essentials.
Exchange 2019 CU13: Setup & Post-Installation
Configuring Windows Server 2022 roles, IIS, and necessary .NET Frameworks.
⚙️ Configuration Series
Mail Flow & Virtual Directories
Setting up Send/Receive connectors and configuring OWA, ECP, and MAPI urls.
Database Availability Group (DAG)
Implementing high availability for mailbox databases and witness server configuration.
🛡️ Advanced Hardening
Extended Protection (EP)
Enabling NTLM Relay mitigation and validating with the Exchange Health Checker.
Modern Auth & Certificate Pinning
Configuring HMA (Hybrid Modern Auth) and securing transport layer communication.