Exchange standard vs enterprise licence


Exchange 2010 Feature Details
Exchange 2010 Server Licenses:
Existing features have been significantly enhanced and new features have been added to both of the Exchange Server editions. The following table provides a feature breakdown for each server edition of Exchange Server 2010:
Feature

Standard Server Edition
Enterprise Server Edition

Mailbox Databases
1-5 databases

6-100 databases

Roles Based Access & Control
Yes

Yes

Transport Resiliency
Yes

Yes

Remote PowerShell
Yes

Yes

Online Move Mailbox
Yes

Yes

Web-based administration
Yes

Yes

Mailbox Resiliency
Yes

Yes
Comparison to Earlier Versions
See the table below for detailed information about licensing differences from Exchange Server 2003 and Exchange Server 2007.

Feature

Exchange Server 2003 Standard Server

Exchange Server 2003 Enterprise Server

Exchange Server 2007 Standard Server

Exchange Server 2007 Enterprise Server

Exchange Server 2010 Standard Server
Exchange Server 2010 Enterprise Server

Mailbox Databases
1-2
3-20
1-5
6-50
1-5

6-100

Database Storage Limit
75GB
None
16TB
16TB
16TB

16TB

Single Copy Cluster
No
Yes
No
Yes
No

No

Local Continuous Replication
No
No
Yes
Yes
No

No

Standby Continuous Replication
No
No
Yes
Yes
No

No

Cluster Continuous Replication
No
No
No
Yes
No

No

Mailbox Resiliency
No
No
No
No
Yes

Yes
These tables capture several changes in licensing Exchange Server 2010 compared with earlier versions. In addition to the new functions, the major changes are:
  • The supported number of mailbox databases has increased from 50 to 100 in the Enterprise Server.
  • Exchange Server 2003 had different storage limits for Standard Server compared with Enterprise Server. In Exchange Server 2007 and Exchange Server 2010, the storage limit is increased to 16 TB for both Standard and Enterprise Server editions.
  • Several high-availability options have been consolidated into just one option for Exchange Server 2010 (Mailbox Resiliency), which is now offered in both the Standard and Enterprise editions. The capabilities of Local Continuous Replication, Standby Continuous Replication, and Cluster Continuous Replication are now unified into the Exchange 2010 Mailbox Resiliency capability. These capabilities enable a simplified approach to high availability and disaster recovery.
Prerequisites for Exchange 2010 Server
For each Exchange Server 2010 instance, you must also purchase a Windows Server 2008 license. The edition of Windows Server that is required depends on which features of Exchange Server 2010 you will be using. For Exchange 2010 servers that use Mailbox Resiliency features for high availability, either Windows Server 2008 Enterprise or Datacenter editions are required for its clustering features. For all other Exchange 2010 scenarios, Windows Server Standard is appropriate.
Therefore, these are the possible scenarios and necessary prerequisites:
Exchange Server Edition


Scenario
Windows Server Edition

Exchange Server 2010 Standard Edition
No Mailbox Resiliency

Standard Server

Exchange Server 2010 Enterprise Edition
No Mailbox Resiliency

Standard Server

Exchange Server 2010 Standard Edition
Mailbox Resiliency

Enterprise /Datacenter Server

Exchange Server 2010 Enterprise Edition
Mailbox Resiliency

Enterprise /Datacenter Server
Exchange 2010 Client Access Licenses (CALs)
As with the Server licenses, the Exchange Server 2010 CALs have also been significantly improved from the previous versions of Exchange. The Exchange Enterprise is available in the same two variants as before; Exchange Enterprise CAL without Services and Exchange Enterprise CAL with Services. The following tables provide a detailed feature breakdown for each CAL edition of Exchange Server 2010:

Feature

Standard CAL

Enterprise CAL
Std. + Ent. CAL (with and without Services)

E-mail, Calendar, Contacts, and Tasks
Yes
 

Yes

Outlook Web App (Internet Explorer, Firefox, and Safari support)
Yes
 

Yes

Exchange ActiveSync Mobile Access
Yes
 

Yes

Rich Outlook inbox experience, including enhanced Conversation View and Mail Tips
Yes
 

Yes

Role Based Administration Control capabilities
Yes
 

Yes

Integration of IM, SMS, and RSS
Yes
 

Yes

Federated Calendar Sharing
Yes
 

Yes

Exchange ActiveSync Mobile Management Policies
Standard
Advanced

All

Journaling
Per Database
Per User/Distribution List

All

Voicemail with Unified Messaging
No
Yes

Yes

Retention Policies
Default
Custom

All

Integrated Archive*
No
Yes

Yes

Multi-Mailbox Search and Legal Hold
No
Yes

Yes

Information Protection & Control (IPC): journal decryption, transport protection rules, Outlook protection rules, IRM Search, and Legal Hold
No
Yes

Yes
Customers may buy the standard CAL standalone, but those who want to acquire the Enterprise features as listed above must purchase both the standard and the Enterprise CALs.
The Enterprise CAL with Services has all the above features but also has antivirus and anti-spam service subscriptions from Microsoft Forefront.
*For information about Outlook client requirements, please see the Outlook licensing requirements
Feature

Standard CAL
Std. + Ent. CAL (with Services)*

Forefront Security for Exchange Server
No

Yes


Forefront Online Security for Exchange
No

Yes

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