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Windows Server · Exchange Server keys
Exchange Server License Keys
Genuine Microsoft Exchange Server 2019 and 2016 license keys, Standard and Enterprise editions. Perpetual on-premises licensing, emailed within minutes.
Activation guaranteedWorks or your money back — 180 days
Instant email deliveryKey + download link in minutes
One-time purchasePerpetual licence, no subscription
Exchange Server License Key | Genuine, Instant Delivery
Genuine Microsoft Exchange Server 2019 and 2016 license keys, Standard and Enterprise editions. Perpetual on-premises licensing, emailed within minutes.
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Exchange Server Licenses for Organizations That Keep Email In-House
Most of the world moved its mailboxes to Microsoft 365, and most of the world was right to. But a meaningful number of organizations still need Exchange running on their own hardware: firms with data-residency or regulatory requirements, businesses on sites with unreliable internet, companies with line-of-business systems bolted onto Exchange, and IT teams who simply want to own their mail. For them, this category sells genuine Exchange Server license keys for Exchange Server 2019 and Exchange Server 2016, in Standard and Enterprise editions, as one-time purchases delivered by email.
Exchange is licensed in two layers and it is worth understanding both before buying. The server license (this category) licenses the Exchange software on a server. The Client Access Licenses license each user or device that connects to it. Standard and Enterprise server editions differ only in scale: Standard supports up to five mailbox databases per server, Enterprise up to one hundred. The features are otherwise identical, which is why Standard covers the great majority of small and medium deployments.
Standard vs Enterprise Edition
| Exchange Server Standard | Exchange Server Enterprise | |
|---|---|---|
| Mailbox databases per server | Up to 5 | Up to 100 |
| Feature set | Full | Full (identical) |
| Database availability groups | Yes | Yes |
| Typical deployment | Single site, up to a few hundred mailboxes | Large multi-database, multi-site environments |
| CALs required | Standard CAL per user/device; Enterprise CAL adds compliance and advanced features | Same |
Note that the edition of the server and the edition of the CAL are independent. You can run Exchange Server Standard with Enterprise CALs if you want features like In-Place Hold, data loss prevention and unified messaging integration for your users.
Exchange 2019 vs Exchange 2016, and What Comes Next
Exchange Server 2019 runs on Windows Server 2019 and 2022, uses the MetaCache Database for faster search on SSD-backed storage, supports up to 48 cores and 256 GB of RAM per server, and is the version to install for any new on-premises deployment. Exchange Server 2016 remains in place in many organizations and its license is still available for expanding or rebuilding those environments. Microsoft ended support for both 2016 and 2019 in October 2025 and has replaced them with Exchange Server Subscription Edition, which is an in-place upgrade from 2019. If you are building new, buy 2019 and plan the SE upgrade; if you are maintaining an existing 2016 environment, we can supply the matching key.
Requirements and Activation
- Exchange 2019: Windows Server 2019 or 2022 (Standard or Datacenter), 128 GB RAM recommended for Mailbox role, Active Directory forest at Windows Server 2012 R2 functional level or higher.
- Exchange 2016: Windows Server 2012 R2, 2016 or 2019.
- Order the edition you need. The Exchange product key and licensing notes arrive by email within minutes.
- Install Exchange from Microsoft's media. It runs as a trial (all features, 180 days) until licensed.
- In the Exchange Admin Center go to Servers, edit the server, and enter the product key; or run
Set-ExchangeServer -Identity SERVER -ProductKey XXXXX-XXXXX-XXXXX-XXXXX-XXXXXin the Exchange Management Shell. - Restart the Information Store service. The server is now licensed permanently.
Every Exchange key is covered by our 180-day money-back guarantee. Need CALs or a Windows Server license for the host? See our Windows Server category or ask us for a combined quote.
Buyer questions
Standard or Enterprise edition?
Standard for up to five mailbox databases per server, which covers most small and mid-sized organizations. Enterprise when you need more databases on one server. Features are identical.
Do I still need CALs?
Yes. Each user or device connecting to Exchange needs a Standard CAL; an Enterprise CAL adds compliance and advanced features on top.
Does Exchange 2019 still activate?
Yes. The product key is entered into the server and licenses it permanently; there is no online activation dependency.
Can I upgrade Exchange 2019 to Subscription Edition later?
Yes. Exchange Server SE is delivered as an in-place upgrade from Exchange 2019, which is one reason 2019 is the right version for a new install today.
Is this a subscription?
No. It is the perpetual server license for the version stated.
How fast is delivery?
Automatic email delivery within minutes of payment.
How fast is delivery?
Your product key and download link are sent to your email address within minutes of payment, around the clock. If nothing arrives within 15 minutes, check your spam folder and then contact support.
Is it a genuine Microsoft key?
Yes. Every Exchange Server key is a genuine Microsoft product key that activates through Microsoft’s own activation servers — genuine software, lifetime licence, updates for the life of the release.
What if the key does not work?
Contact our 24/7 support with your order number. We resolve the activation or replace the key; if we cannot, you receive a full refund under the 180-day money-back guarantee.
Customer reviews
What customers say
“Very satisfied. Clean OS, fast performance, and no unnecessary apps. Would buy again.”
“Professional service. Fast delivery and working key. No issues at all.”
“Windows 10 product key and software arrived via email as advertised. If you don't get it right away be patient, it arrives. Mine was delivered next day. Worked just fine”
“I purchased two licenses, but the email with one key didn’t arrive immediately. Contacted support, and they resent it right away. Activation went perfectly after that.”
“This bundle had everything I needed for work and home. Office 2024 Pro Plus is fast and stable.”
“Good bundle. Support answered my email quickly when I needed clarification.”
“Installation instructions were clear. Took a restart to finish activation, but everything works now.”
“Highly recommended. Reliable service, working key, and helpful after-sales support.”
“Good value for money. The upgrade unlocked BitLocker and Remote Desktop just like expected.”
“Ordered from OfficeGSM.com and got the email instantly. Activation was smooth and easy.”
“Had some trouble with bootable USB at first, but after fixing it, installation went fine.”