- Editions Windows
- Language Multilingual, German
- Editions Windows
- Language Multilingual, German
- Licence type CSP
- Editions Windows
- Language Multilingual, German
- Editions Windows
- Language Multilingual, German
- Licence type OEM
- Language Multilingual, German
- Licence type OEM
- Language Multilingual, German
- Licence type CSP
- Editions Windows
- Language Multilingual, German
- Editions Windows
- Language Multilingual, German
- Licence type Volume Licence (KMS)
- Editions Windows
- Language Multilingual, German
Why an Exchange Server is indispensable for businesses
Microsoft Exchange Server has been the standard on-premises platform for email, calendars, contacts and resource management (e.g. room/device mailboxes) in businesses for many years. The key advantage is that you retain control over data, policies and operations – including your own security and compliance requirements, integration with Active Directory, a centralised rights/roles model and manageable mail flow control (transport rules, connectors, journaling/archiving depending on the CAL). Organisations with high data protection requirements, hybrid set-ups or specialised integrations (e.g. gateways, DLP/archiving, monitoring, SMTP applications) in particular make a conscious decision to deploy Exchange Server on-premises.
In addition, many companies benefit from:
- Centralised management and clear operational processes (backup/restore, maintenance windows, monitoring)
- Scaling across multiple servers and high availability (e.g. DAG concepts – depending on the design)
- A well-organised tenant/department structure through policies, address lists, permissions and delegations
A comparison of Microsoft Exchange Server versions
Exchange Server 2019
Exchange Server 2019 is the established on-premises version, which is considered the standard in many environments. It is supported by Microsoft on current Windows Server platforms (depending on build/matrix) and is designed for traditional enterprise requirements. The Supportability Matrix and system requirements are particularly important for planning and compatibility.
Important to note in practice: Exchange Server is available in two server editions (Standard/Enterprise) with clear limits on the number of mounted databases per server.
Exchange Server Standard vs. Enterprise – differences explained
The key difference lies in the database scaling limits:
- Standard Edition: up to 5 attached databases per server
- Enterprise Edition: up to 100 mounted databases per server
In addition – and this is relevant in many environments – there is a well-known limitation in the Standard Edition when mounting very large databases (Standard cannot mount databases > 1 TB; Microsoft describes this in a KB article/technical note).
Important: Features for users (e.g. archiving/compliance functions) depend not only on the server edition, but very often on the CALs (Standard CAL vs. Enterprise CAL add-on).
Exchange Server Subscription Edition (SE)
Exchange Server Subscription Edition (SE) is the current on-premises generation under the subscription model. Technically, SE as ‘RTM’ is not a complete rebuild like earlier major releases, but a modern, continuously maintained version that receives regular updates.
For organisations, this means that anyone wishing to run Exchange on-premises in the long term should strategically focus on SE (and plan updates and modernisation accordingly).
Exchange Server licensing explained simply
Exchange Server licence
The server licence is the basic requirement for installing and running Exchange Server (e.g. 2019 or SE) on a server. It applies per server instance or per server on which Exchange is running. However, without the appropriate client access licences (CALs), users or devices may not legally access Exchange services. (The specific arrangement depends on the licensing programme – for most traditional on-premises purchases, the ‘server plus CAL’ principle is the standard.)
Exchange CAL (Client Access Licence)
An Exchange CAL is the access licence for users or devices that use Exchange (e.g. Outlook/ActiveSync/OWA, calendar, contacts). Microsoft distinguishes between:
- Standard CAL: covers the basic functions
- Enterprise CAL (add-on): extends the Standard CAL with additional enterprise features – and is only ever valid in addition to the Standard CAL (Standard CAL + Enterprise CAL).
In practice, organisations also choose between a User CAL (per user) and a Device CAL (per device) – depending on whether several people share a device (Device CAL) or a single user uses multiple devices (User CAL).
Installation & Activation of Microsoft Exchange Server
Typical procedure:
- Check prerequisites: supported Windows Server, Active Directory health, name resolution, certificate scheme, firewall/ports, sufficient resources in accordance with Microsoft specifications.
- Provision Exchange: install according to the guide, then schedule the latest updates/CUs (essential, particularly for production environments).
- Configuration: domains, send/receive connectors, certificates (TLS), virtual directories/URLs, AutoDiscover, mail flow, spam/antivirus integration.
- Activation / licence verification: Product key/volume licence procedures depending on licence type; followed by a functional test (test email, Outlook, OWA, ActiveSync).
At Lizenzdeals24, you not only receive the key, but also assistance with installation and activation on request (step-by-step guides and best-practice advice).
Buy Microsoft Exchange Server now at an affordable price from Lizenzdeals24
At Lizenzdeals24, you can obtain Microsoft Exchange Server licences and the corresponding Exchange CALs on attractive terms – including:
- Fast digital delivery
- Genuine product keys
- Expert technical support for installation, activation and licensing queries
This way, you can secure a professional on-premises email platform that suits your company’s size and compliance requirements.
FAQ: Frequently Asked Questions about Microsoft Exchange Server
This depends primarily on:
- Version (e.g. Exchange 2019 vs. Exchange SE)
- Server edition (Standard/Enterprise)
- Number and type of CALs (User/Device; Standard CAL and, where applicable, Enterprise CAL add-on)
If you can give us a rough idea of how many users/devices will be accessing the system, we can quickly and accurately determine the typical licensing requirements.
