Exchange Server 2007 企业版与标准版功能区别
Exchange Server 2007 提供两种服务器版本:标准版以及企业版。

• Exchange Server 2007 标准版旨在满足小型和中型企业的消息通信和协作需求;并同样适用于特定的服务器角色和分支机构。

• Exchange Server 2007 企业版面向大型企业,确保能够建立多重的存储群组和数据库。
功能                      标准版                  企业版
存储群组支持        5个                         50个
数据库支持            5个                         50个
单一拷贝集群     不受支持                           受支持
集群持续复制     不受支持                           受支持

Exchange Server 2007 Editions

Exchange Server 2007 is offered in two server editions: Standard Edition and Enterprise Edition.
Exchange Server 2007 Standard Edition is designed to meet the messaging and collaboration needs of small and medium corporations; it may also be appropriate for specific server roles or branch offices.
Exchange Server 2007 Enterprise Edition, designed for large enterprise corporations, enables creation of multiple storage groups and databases.
Exchange Server 2007 Edition Offerings
Feature Standard Edition Enterprise Edition
Storage Group Support
5 storage groups
50 storage groups
Database Support
5 databases
50 databases
Database Storage Limit
16 TB per database
16 TB per database
Single Copy Clusters
Not supported
Local Continuous Replication
Cluster Continuous Replication
Not supported
Standby Continuous Replication ***
The numbers of storage groups and databases in the above table is the maximum number of each object that can be created in each edition of Exchange Server 2007. In both editions of Exchange Server 2007, each storage group is limited to a maximum of five databases. Therefore, the Standard Edition of Exchange Server 2007, the maximum number of databases per server is five, and the Enterprise Edition of Exchange Server 2007, the maximum number of databases per server is fifty. For more information, see Managing Storage Groups and Databases at

Exchange Server 2007 Client Access Licenses

Exchange Server 2007 is offered in two client access license (CAL) editions: Standard CAL and Enterprise CAL.
The Exchange Server Standard CAL provides access to e-mail, shared calendaring and Outlook Web Access (OWA). In addition you will get advancements that reduce the cost and complexity of the messaging system by giving IT Administrators the messaging protection their company demands, the anywhere access their end users want and the reliability they need.
The Exchange Server Enterprise CAL is an additive CAL and requires that a Standard CAL is also purchased for each user or device. The Exchange Server Enterprise CAL provides access to Unified Messaging and advanced compliance, as well as Forefront Security for Exchange Server and Exchange Hosted Filtering for site and hosted antivirus and anti-spam protection.
A CAL is required for each user or device (depending the license) accessing the server. Either version of the CAL may be run against either version of the server.
The table below illustrates what features are included with the Exchange Server Standard CAL and Exchange Server Enterprise CAL. The last column illustrates what features can be accessed if you own both the Exchange Server Standard CAL and the Exchange Server Enterprise CAL.
Key:Feature = Feature included Feature = Feature not included
Exchange Server 2007 CAL Offerings
Feature Standard CAL Enterprise CAL* Standard CAL + Enterprise CAL
E-mail, shared calendaring, contacts, tasks, management
Feature Feature Feature
Outlook Web Access
Feature Feature Feature
Exchange ActiveSync
Feature Feature Feature
Advanced Exchange ActiveSync Policies ***
Feature Feature Feature
Unified Messaging
Feature Feature Feature
Per-User/Per-Distribution List Journaling
Feature Feature Feature
Managed E-mail Folders (Default Folders)
Feature Feature Feature
Managed E-mail Folders (Custom Folders)
Feature Feature Feature
Exchange Hosted Filtering**
Feature Feature Feature
Forefront Security for Exchange Server**
Feature Feature Feature
* Additive CAL, purchase of the Standard CAL is required for Standard offerings
** Offered ly through Volume Licensing Programs, not available via retail purchase. Your right to access the line services ends without active Software Assurance.
*** Offered ly through Exchange Server 2007 Service Pack 1 (SP1)