Exchange Server supportability matrix

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The Microsoft Exchange Server Supportability Matrix provides a central source of information for Exchange admins to understand the supported configurations and versions of Exchange Server.

Supported versions and builds

The following table lists the supported versions and builds of Exchange Server.

Version Build(s)
Exchange Server 2019 CU13 (2023 H1 CU)
CU12 (2022 H1 CU)
Exchange Server 2016 CU23

Note

Exchange Server 2013 reached end of support on April 11, 2023.

Supported operating systems

The following table lists the supported operating systems for Exchange Server and the Exchange Management Tools role.

Version Operating Systems
Exchange Server 2019 Windows Server 2022
Windows Server 2019
Exchange Server 2016 Windows Server 2016
Windows Server 2012 R2
Windows Server 2012
Exchange Management Tools Windows Server 2022
Windows Server 2019
Windows Server 2016
Windows Server 2012 R2
Windows Server 2012
Windows 10

Note

Windows Server 2012 and Windows Server 2012 R2 will reach end of support very soon. We strongly recommend migrating to a supported version as soon as possible.

Supported Active Directory environments

The following table lists the supported Active Directory environments for Exchange Server.

Version Active Directory servers Forest Functional Levels
Exchange Server 2019 Windows Server 2022
Windows Server 2019
Windows Server 2016
Windows Server 2012 R2		 Windows Server 2016
Windows Server 2012 R2
Exchange Server 2016 Windows Server 2022
Windows Server 2019
Windows Server 2016
Windows Server 2012 R2
Windows Server 2012		 Windows Server 2016
Windows Server 2012 R2
Windows Server 2012

Note

An Active Directory server refers to both writable Global Catalog (GC) servers and writable Domain Controllers (DC). Read-only GCs and read-only DCs aren't supported.

Supported Browsers for Outlook on the web

The following table lists the supported web browsers for use with Outlook on the web (OWA) in Exchange Server.

Version Browsers S/MIME Support
Exchange Server 2019 OWA Microsoft Chromium Edge
Microsoft Chromium Edge (IE Mode)
Microsoft Edge
Current release of Firefox
Current release of Chrome
Current release of Safari		 Yes
Yes
Yes
No
Yes
No
Exchange Server 2019 OWA Light Microsoft Edge
Current release of Safari		 S/MIME is not available in light mode
Exchange Server 2016 OWA Microsoft Chromium Edge
Microsoft Chromium Edge (IE Mode)
Microsoft Edge
Current release of Firefox
Current release of Chrome
Current release of Safari		 No
Yes
No
No
No
No
Exchange Server 2016 OWA Light Microsoft Edge
Current release of Firefox
Current release of Chrome
Current release of Safari		 S/MIME is not available in light mode

Note

Current release of Firefox/Chrome refers to the latest version or the immediately previous version.

Supported Email Clients

The following table lists the supported Microsoft email clients for Exchange Server.

Version Clients
Exchange Server 2019 Microsoft 365 Apps for enterprise
Outlook 2021
Outlook 2019
Outlook 2016
Outlook for Mac (Microsoft 365, 2019)
Outlook for iOS
Outlook for Android
Exchange Server 2016 Microsoft 365 Apps for enterprise
Outlook 2021
Outlook 2019
Outlook 2016
Outlook for Mac (Microsoft 365, 2019)
Outlook for iOS
Outlook for Android

Additional Requirements and Information

Exchange Server also has supportability requirements for some of its prerequisites, namely .NET Framework and Windows PowerShell.

.NET Framework

Exchange Server 2019 and Exchange Server 2016 support only .NET Framework 4.8.

Windows PowerShell

Exchange Server 2019 and Exchange Server 2016 support only the version of PowerShell included in Windows Server. Exchange Server doesn't support the use of Windows Management Framework (WMF) add-ons on any version of Windows PowerShell or Windows. If there are other installed versions of Windows PowerShell or PowerShell Core that support side-by-side operation, Exchange Server will use only the version that it requires.

For additional information, see the following resources: