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Exchange 2016 system requirements

 

Applies to: Exchange Server 2016

Topic Last Modified: 2016-06-24

Summary: What you need to have in your environment before installing Exchange 2016.

tipTip:
Coming from the Exchange Deployment Assistant? Click Exchange 2013 system requirements.

Before you install Exchange 2016, we recommend that you review this topic to ensure that your network, hardware, software, clients, and other elements meet the requirements for Exchange 2016. In addition, make sure you understand the coexistence scenarios that are supported for Exchange 2016 and earlier versions of Exchange.

The following table lists the scenarios in which coexistence between Exchange 2016 and earlier versions of Exchange is supported.

Coexistence of Exchange 2016 with earlier versions of Exchange Server

Exchange version Exchange organization coexistence

Exchange 2007 and earlier versions

Not supported

Exchange 2010

Supported with Update Rollup 11 for Exchange 2010 SP3 or later on all Exchange 2010 servers in the organization, including Edge Transport servers.

Exchange 2013

Supported with Exchange 2013 Cumulative Update 10 or later on all Exchange 2013 servers in the organization, including Edge Transport servers.

Mixed Exchange 2010 and Exchange 2013 organization

Supported with the following minimum versions of Exchange:

  • Update Rollup 11 Exchange 2010 SP3 or later on all Exchange 2010 servers in the organization, including Edge Transport servers.

  • Exchange 2013 Cumulative Update 10 or later on all Exchange 2013 servers in the organization, including Edge Transport servers.

Exchange 2016 supports hybrid deployments with Office 365 tenants that have been upgraded to the latest version of Office 365. For more information about specific hybrid deployments, see Hybrid deployment prerequisites.

The following table lists the requirements for the network and the directory servers in your Exchange 2016 organization.

Network and directory server requirements for Exchange 2016

 

Component Requirement

Domain controllers

All domain controllers in the forest need to be running one of the following:

  • Windows Server 2012 R2 Standard or Datacenter

  • Windows Server 2012 Standard or Datacenter

  • Windows Server 2008 R2 Standard or Enterprise

  • Windows Server 2008 R2 Datacenter RTM or later

  • Windows Server 2008 Standard, Enterprise, or Datacenter

Active Directory forest

The Active Directory forest functionality level needs to be at Windows Server 2008 or higher.

DNS namespace support

Exchange 2016 supports the following domain name system (DNS) namespaces:

  • Contiguous

  • Noncontiguous

  • Single label domains

  • Disjoint

For more information about DNS namespaces supported by Exchange, see Microsoft Knowledge Base article 2269838, Microsoft Exchange compatibility with Single Label Domains, Disjoined Namespaces, and Discontiguous Namespaces.

IPv6 support

In Exchange 2016, IPv6 is supported only when IPv4 is also installed and enabled. If Exchange 2016 is deployed in this configuration, and the network supports IPv4 and IPv6, all Exchange servers can send data to and receive data from devices, servers, and clients that use IPv6 addresses. For more information, see IPv6 support in Exchange 2013.

The use of 64-bit Active Directory domain controllers increases directory service performance for Exchange 2016.

noteNote:
In multi-domain environments, on Windows Server 2008 domain controllers that have the Active Directory language locale set to Japanese, your servers may not receive some attributes that are stored on an object during inbound replication. For more information, see Microsoft Knowledge Base article 949189, A Windows Server 2008 domain controller that is configured with the Japanese language locale may not apply updates to attributes on an object during inbound replication.

For security and performance reasons, we recommend that you install Exchange 2016 only on member servers and not on Active Directory directory servers. However, you can't run DCPromo on a computer running Exchange 2016. After Exchange 2016 is installed, changing its role from a member server to a directory server, or vice versa, isn't supported.

For information about deploying Exchange in a virtualized environment, see Exchange 2016 virtualization.

Hardware requirements for Exchange 2016

 

Component Requirement Notes

Processor

  • x64 architecture-based computer with Intel processor that supports Intel 64 architecture (formerly known as Intel EM64T)

  • AMD processor that supports the AMD64 platform

  • Intel Itanium IA64 processors not supported

For more information, see Sizing Exchange 2016 Deployments.

See the "Operating system" section later in this topic for supported operating systems.

Memory

Varies depending on Exchange roles that are installed:

  • Mailbox   8GB minimum

  • Edge Transport   4GB minimum

For more information, see Sizing Exchange 2016 Deployments.

Paging file size

The page file size minimum and maximum must be set to physical RAM plus 10MB, to a maximum size of 32,778MB (32GB) if you're using more than 32GB of RAM.

None

Disk space

  • At least 30 GB on the drive on which you install Exchange

  • An additional 500 MB of available disk space for each Unified Messaging (UM) language pack that you plan to install

  • 200 MB of available disk space on the system drive

  • A hard disk that stores the message queue database on with at least 500 MB of free space.

For more information, see Sizing Exchange 2016 Deployments.

Drive

DVD-ROM drive, local or network accessible

None

Screen resolution

1024 x 768 pixels or higher

None

File format

Disk partitions formatted as NTFS file systems, which applies to the following partitions:

  • System partition

  • Partitions that store Exchange binary files or files generated by Exchange diagnostic logging

Disk partitions containing the following types of files can be formatted as ReFS:

  • Partitions containing transaction log files

  • Partitions containing database files

  • Partitions containing content indexing files

None

The following table lists the supported operating systems for Exchange 2016.

importantImportant:
We don’t support the installation of Exchange 2016 on a computer that’s running in Windows Server Core mode. The computer must be running the full installation of Windows Server. If you want to install Exchange 2016 on a computer that’s running in Windows Server Core mode, you must convert the server to a full installation of Windows Server by running the command Install-WindowsFeature Server-Gui-Mgmt-Infra, Server-Gui-Shell -Restart.

Supported operating systems for Exchange 2016

 

Component Requirement

Mailbox and Edge Transport server roles

  • Windows Server 2012 R2 Standard or Datacenter

  • Windows Server 2012 Standard or Datacenter

Management tools

One of the following:

  • Windows Server 2012 R2 Standard or Datacenter

  • Windows Server 2012 Standard or Datacenter

  • 64-bit edition of Windows 10

  • 64-bit edition of Windows 8.1

Supported Windows Management Framework versions for Exchange 2016

Exchange 2016 only supports the version of Windows Management Framework that's built in to the release of Windows that you're installing Exchange on. Don't install versions of Windows Management Framework that are made available as stand-alone downloads on servers running Exchange.

We strongly recommend that you use the latest version of .NET Framework that's supported by the release of Exchange you're installing.

 

Exchange version .NET Framework 4.6.2 or later .NET Framework 4.6.1 .NET Framework 4.5.2 .NET Framework 4.5.1 .NET Framework 4.5

Exchange 2016 CU2 or later

 

X1,2 

 X

 

 

Exchange 2016 RTM or CU1

 

 

 X

1 .NET Framework 4.6.1 requires post-release fixes if you want to install it on a server running Exchange 2016 CU2. For more information. see Exchange 2016 prerequisites.

2 If you're upgrading to Exchange 2016 CU2 from Exchange 2016 RTM or Exchange 2016 CU1, we strongly recommend that you install Exchange 2016 CU2 before .NET Framework 4.6.1 and its related post-release fixes.

Exchange 2016 and Exchange Online support the following versions of Outlook:

  • Outlook 2016

  • Outlook 2013

  • Outlook 2010 with KB2965295

  • Outlook for Mac for Office 365

  • Outlook for Mac 2011

For a list of Outlook releases that Exchange supports, see Outlook Updates.

importantImportant:
The information above provides the minimum versions required for a client to connect to Exchange and Exchange Online. We strongly recommend that you install the latest available service packs and updates available so that your users receive the best possible experience when connecting to Exchange and Exchange Online.

Outlook clients earlier than Outlook 2010 are not supported. Email clients on Mac operating systems that require DAV, such as Entourage 2008 for Mac RTM and Entourage 2004, are not supported.

 
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