: An older stable release often used for specific compatibility needs. Cumulative Update 16 : Older builds available for legacy server requirements. Core System Requirements
| Component | Requirement | |-----------|-------------| | | Windows Server 2016 Standard/Datacenter (64-bit), Windows Server 2019, or Windows Server 2022 | | RAM | 8 GB minimum (16+ GB recommended for production) | | Disk Space | 30 GB for installation + 500 MB or more for each mailbox database | | Page File | 25% of RAM + 10 MB | | CPU | 64-bit, 1.4 GHz (4+ cores strongly recommended) | | .NET Framework | .NET 4.8 (must be installed before Exchange setup) | | Visual C++ | 2013 Redistributable (x64) | microsoft exchange server 2016 download 64 bit iso fixed new
The most recent and stable version of Microsoft Exchange Server 2016 is Cumulative Update 23 (CU23) : An older stable release often used for
As of late 2023 through 2024, is the most stable and "fixed" build. It includes: It includes: Cumulative Update 23 (CU23) is the
Cumulative Update 23 (CU23) is the final, full installation version for Microsoft Exchange Server 2016, which reached end of support on October 14, 2025. It is highly recommended to migrate to Exchange Server 2019 or Microsoft 365, although CU23 remains necessary for patching legacy environments. For the download and full details, visit Microsoft Download Center
: The "Mailbox" role now combines the previous Client Access and Mailbox roles into a single installation, simplifying deployment and load balancing.
Download and Installation Notes