| Server License | Exchange 2003 Server | Exchange 2007 Server |
| Standard |
|
|
| Enterprise |
|
|
Source: Microsoft, July 2006
Exchange versions 2003 and earlier had one CAL offering. With Exchange 2007, Microsoft has added a second, add-on CAL offering. Unfortunately, the two versions of CALs are called Standard and Enterprise. Standard and Enterprise CALs should not be confused with Standard and Enterprise Server licenses. There is no one-to-one relationship.
Exchange versions 2003 and earlier had one CAL offering. With Exchange 2007, Microsoft has added a second, add-on CAL offering. Unfortunately, the two versions of CALs are called Standard and Enterprise. Standard and Enterprise CALs should not be confused with Standard and Enterprise Server licenses. There is no one-to-one relationship.
According to Microsoft, there will be no price increase for the Exchange 2007 Standard CAL price. However, a “step-up” price will be applied to the new Exchange 2007 Enterprise CAL.
Figure 2: Comparison of Exchange 2007 Standard and Enterprise CAL Features
| CAL License | CAL Features |
| Standard | Exchange 2003 CAL features, plus
|
| Enterprise | Exchange 2007 Standard CAL features, plus
|
Source: Microsoft, July 2006
Standard or Enterprise Server licenses can be purchased with Standard or Enterprise CALs. Scenarios:
Standard Server license, plus Standard CALs
Standard Server license, plus Enterprise CALs
Standard Server license, plus a mix of Standard and Enterprise CALs
Enterprise Server license, plus Standard CALs
Enterprise Server license, plus Enterprise CALs
Enterprise Server license, plus a mix of Standard and Enterprise CALs.
Evaluate your company’s requirements against CAL feature-sets. Because of “mix and match” licensing, you can purchase Standard or Enterprise CALs for different groups of users.
Before purchasing new or upgrading existing Exchange Server licenses or CALs,evaluate the terms of service for your company’s overall Microsoft licensing agreement.
Key:
POP: Post Office Protocol
IMAP: Internet Mail Access Protocol
Notes:
The Blackberry trademark is owned by Research in Motion.
The Eudora trademark is owned by Qualcomm.
The Exchange, Outlook, Outlook Express and Outlook Web Access trademarks are owned by Microsoft.
This article was reprinted with the permission from Grey Consulting [1]
Links:
[1] http://www.grey-consulting.com/