Exchange 2010 CAL

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:
E-mail, Calendar, Contacts, and Tasks, Outlook Web App (Internet Explorer, Firefox, and Safari support), Exchange ActiveSync Mobile Access, Rich Outlook inbox experience, including enhanced Conversation View and Mail Tips,
Role Based Administration Control capabilities, Integration of IM, SMS, and RSS, Federated Calendar Sharing, Exchange ActiveSync Mobile Management Policies Standard,Journaling Per Database, Default Retention Policies

Enterprise CAL:
Advanced Exchange ActiveSync Mobile Management Policies, Journaling Per User/Distribution List, Custom Retention Policies, Voicemail with Unified Messaging, Integrated Archive, Multi-Mailbox Search and Legal Hold, Information Protection & Control (IPC): journal decryption, transport protection rules, Outlook protection rules, IRM Search, and Legal Hold.

Std. + Ent. CAL (with and without Services):
E-mail, Calendar, Contacts, and Tasks, Outlook Web App (Internet Explorer, Firefox, and Safari support), Exchange ActiveSync Mobile Access, Rich Outlook inbox experience, including enhanced Conversation View and Mail Tips, Role Based Administration Control capabilities, Integration of IM, SMS, and RSS, Federated Calendar Sharing, All Exchange ActiveSync Mobile Management Policies, All Journaling, Voicemail with Unified Messaging, All Retention Policies, Integrated Archive, Multi-Mailbox Search and Legal Hold, Information Protection & Control (IPC): journal decryption, transport protection rules, Outlook protection rules, IRM Search, and Legal Hold

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.

Apart from new functions, there are several major changes for licensing Exchange 2010 CAL compared to earlier versions:

The Exchange 2003 license was sold with just one CAL, while the Exchange 2007 and Exchange 2010 CAL licenses are sold with both Standard and Enterprise CALs.
The Exchange 2003 CAL included rights to the Outlook client. In Exchange 2007 and Exchange 2010, the Outlook client license must be purchased separately.
Features for managing e-mail retention have evolved from Mailbox Manager in Exchange 2003 to Managed Folders in Exchange 2007 to Retention Policies in Exchange 2010.
Advanced Exchange ActiveSync mobile policies were introduced in the Exchange 2007 Enterprise CAL at SP1.
Unified Messaging, Managed Folders, and Per-user/Per-distribution list Journaling were introduced in the Exchange 2007 Enterprise CAL.

Prerequisites for Exchange 2010 Client Access Licenses (CALs):

For each Exchange Server 2010 CAL, there are two possible prerequisites for the underlying Microsoft technologies. First, a Windows Server 2008 CAL is required for each user or device in all scenarios. Second, a Windows 2008 Rights Management Server (RMS) CAL is required for each Exchange Server 2010 user or device that will be making use of the Information Rights Management (IRM) features.

Therefore, these are the possible scenarios and necessary prerequisites:
Exchange Server 2010 Standard CAL - Using IRM - Windows Server CAL Required - RMS CAL Required
Exchange Server 2010 Standard & Enterprise CAL - Not using IRM - Windows Server CAL Required - No RMS CAL Required
Exchange Server 2010 Standard & Enterprise CAL - Using IRM - Windows Server CAL Required - RMS CAL Required