Exchange 2019 Requirements
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Exchange 2019 Requirements (here)

Wondering about Exchange 2019 requirements to deploy it in your production environment or you simply want to test it out in your Lab Environment? You’re in the right place to learn about Exchange Server 2019.

This article will also show you how to download an evaluation copy of Exchange 2019 so you can install in your test environment.

You’ll also learn the Exchange 2019 system requirements necessary for a successful installation plus recommended co-existence environments with earlier Exchange Server versions.

Exchange 2019 download

If you’re looking for an Exchange 2019 download as Software Evaluation, it’s now only available if you have a Volume Licensing subscription or MSDN subscription.

Possibly the reason it is not easily available could be because of the complexities of Exchange Server and the regular updates, it would more practical for vast majority of businesses to buy a Microsoft 365 subscription such Microsoft 365 Business Standard or Premium to use the Exchange features that so many businesses find very useful.

However, you can still try out Microsoft Exchange Server 2019 by downloading Exchange Server 2019 Cumulative Update. The Cumulative Update works pretty much the same as an Evaluation Copy.

And you can find details about the Cumulative updates and various information on the link given here.

Exchange 2019 cumulative update (Exchange 2019 cu)

You can find and download the latest Exchange 2019 cumulative update from this Microsoft page

Cumulative updates for other Exchange Server Versions such as Exchange Server 2013 and Exchange Server 2016 are also available from the same page, apart from just Exchange 2019 CU, so go on Click the link below.

https://docs.microsoft.com/en-us/exchange/new-features/build-numbers-and-release-dates?view=exchserver-2019

Exchange 2019 Icon
Exchange 2019 Icon

Exchange 2019 system requirements

Exchange Server 2019 – supported operating systems (OS)


Exchange Server 2019 componentRequirement
Mailbox server roleWindows Server 2019 Standard or Datacenter
Edge Transport server role Windows Server 2019 Standard or Datacenter
Management toolsWindows Server 2019 Standard or Datacenter
Management tools 64-bit edition of Windows 10
Exchange 2019 – supported operating systems (OS)

Hardware requirements for Exchange Server 2019

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


ComponentRequirementNotes
Processor (CPU)Either of the following types of 64-bit processors:

Intel processor that supports Intel 64 architecture (formerly known as Intel EM64T).

AMD processor that supports the AMD64 platform.

Intel Itanium IA64 processors are not supported.

Recommended supported processor sockets is up to 2 on physical machines.
RAM
(Memory)
Varies by Exchange server role:

Mailbox: 128 GB RAM minimum recommended.

Edge Transport: 64 GB RAM minimum recommended.
Exchange 2019 has large memory support (up to 256 GB RAM).

For testing purposes, you don’t need as much RAM as recommended here.
Paging file sizeSet the paging file minimum and maximum value to the same size: 25% of installed memory.None
Disk spaceAt least 30 GB of free space on the drive where you’re installing Exchange.

At least 200 MB of free space on the system drive.

At least 500 MB of free space on the drive that contains the message queue database.
None
Screen resolution1024 x 768 pixels (XGA) or higherNone
File systemNTFS: Required on partitions that contain the following types of files:

The System partition.
Exchange binaries.
Files generated by Exchange diagnostic logging.
Transport database files (for example, the mail queue database).

ReFS: Supported on partitions that contain the following types of Exchange files:

Mailbox databases.
Transaction logs.
None
Hardware requirements for Exchange Server 2019

Supported coexistence scenarios for Exchange Server 2019

Exchange Server 2019 can co-exist with earlier version of Exchange under conditions described in the table below.


Exchange versionExchange organization coexistence
Exchange 2010 and earlier versionsNot supported
Exchange 2013Supported with Exchange 2013 Cumulative Update 21 (CU21) or later on all Exchange 2013 servers in the organization, including Edge Transport servers.
Exchange 2016Supported with Exchange 2016 CU11 or later on all Exchange 2016 servers in the organization, including Edge Transport servers.
Mixed Exchange 2013 and Exchange 2016 organizationSupported if all Exchange 2013 and Exchange 2016 servers in the organization meet the requirements as previously described in this table.
Exchange 2019 Co-existence scenarios

Network and active directory server requirements for Exchange Server 2019

The requirements for the network and the Active Directory servers in your Exchange 2019 organization are described in the following table:


ComponentRequirement
Domain controllersAll domain controllers in the forest need to be running one of the following versions of Windows Server:
Windows Server 2019 Standard or Datacenter
Windows Server 2016 Standard or Datacenter
Windows Server 2012 R2 Standard or Datacenter
Active Directory ForestThe Active Directory Forest functional level is Windows Server 2012 R2 or higher.
Active Directory siteThe Active Directory site where you install the Exchange Server must contain at least one writeable domain controller that’s also a global catalog server, or the installation will fail. Furthermore, you can’t install the Exchange server and then remove the domain controller from the Active Directory site.
DNS namespaceExchange 2019 supports the following DNS namespaces:
Contiguous
Noncontiguous
Single label domains
Disjoint

For more information about DNS namespaces that are supported by Exchange, see KB2269838.
IPv6Exchange 2013 and later support IPv6 only when IPv4 is also installed and enabled on the Exchange server. If you deploy Exchange in this configuration, and your 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.
Network and active directory server requirements for Exchange Server 2019

Exchange Server 2019 ram requirements

The recommended Exchange Server 2019 ram requirements vary by Exchange server role for that server you’re installing Exchange Server 2019.

For a production Exchange Server 2019 Mailbox Role, 128 GB RAM is the minimum recommended.

While a production Exchange Server 2019 Edge Transport Role, 64 GB RAM is the minimum recommended.

For a Test Lab environment, I have installed Exchange Server 2019 Mailbox Role on a Hyper-V virtual machine allocated with 4GB RAM. It’s slow but it allows you to test out the features.

Exchange 2019 eol (End of Life)

Exchange 2019 end of life applies to both Enterprise and Standard editions, and also it’s worth knowing that Exchange Server 2019 follows the Fixed Lifecycle Policy.

Support Dates

Exchange Server EditionStart DateMainstream End DateExtended End Date
Exchange Server 2019 EnterpriseOct 22, 2018Jan 9, 2024Oct 14, 2025
Exchange Server 2019 StandardOct 22, 2018 Jan 9, 2024 Oct 14, 2025



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