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2000, 2003 & 2007 Exchange Server Version ComparisonPublished: November 1, 2006 | Updated: November 30, 2006
Compare the features available in Exchange Server 2007 with features available in earlier versions, Exchange Server 2003, and Exchange Server 2000.
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Built-in Protection
Anywhere Access
Operational Efficiency
Built-in Protection
Key: = Feature included = Feature not included
Feature Exchange Server 2000
Exchange Server 2003
Exchange Server 2007
Anti-spam and Antivirus
Virus Scanning Application Programming Interface (VSAPI)
Integrated IP based block and allow lists
Exchange Server Intelligent Message Filter (IMF)
A
Frequent content filter updates to the IMF
B C
Distribution lists restricted to authenticated users
Support for Sender ID D
Feature Exchange Server 2000
Exchange Server 2003
Exchange Server 2007
Attachment stripping in Outlook Web Access
Perimeter network protection using the Edge Transport Server - domain membership not required
Automatic spam signature, IP reputation, and content filter (IMF) updates
E
Dynamic analysis of sender reputation
Attachment stripping on the Edge or Hub Transport server roles
EdgeSync for recipient filtering and safe sender respect
Microsoft Office Outlook E-mail Postmark validation
Anti-spam stamp - background on spam assessment
Two-tiered spam quarantine - administrator and end user
Antivirus stamp - track virus scanning history
Antivirus agent access to Exchange MIME parsing engine for robust transport level scanning
Edge Transport service resilience for inbound SMTP message receipt rate control - enables high availability
Feature Exchange Server 2000
Exchange Server 2003
Exchange Server 2007
Open proxy detection to help prevent Denial of Service (DOS) and spam attacksConfidential Messaging
Transport Layer Security (TLS) Encryption
Signed Lightweight Directory Access Protocol (LDAP) requests to Active Directory service
Support for S/MIME enabled clients
Front-end and back-end Kerberos authentication
Outlook Web Access traffic encrypted by default using Secure Sockets Layer (SSL)
Automatic intra-organization message encryptionCompliance
Journaling
Multi-mailbox search F F
Per user or per distribution list journaling
G
Retention and expiration policy application through Messaging Records Management
Managed Folders
Hub Transport rulesBusiness Continuity
Feature Exchange Server 2000
Exchange Server 2003
Exchange Server 2007
Active/Passive clustering
Database backup via Microsoft Volume Shadow Copy Service
Eight-node clustering
Recovery storage groups
Continuous replication - built-in asynchronous replication of storage groups
Backup from database copy (local) or server (cluster)
Database portability - recovery to any server in the organization
A) With SP1 and above
B) With SP2, bi-weekly updates available
C) With Standard CAL, bi-weekly updates available; with Enterprise CAL or Forefront Security for Exchange Server, daily or more frequent updates available
D) With SP2
E) With Enterprise CAL or Forefront Security for Exchange Server, daily or more frequent updates available
F) Uses Microsoft Exchange Mailbox Merge
G) With Enterprise CAL
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Anywhere Access
Key: = Feature included = Feature not included
Feature Exchange Server 2000
Exchange Server 2003
Exchange Server 2007
Collaboration and Productivity
Feature Exchange Server 2000
Exchange Server 2003
Exchange Server 2007
Public folder access from Outlook
Outlook Anywhere (formerly known as RPC over HTTP) - access to Exchange from Outlook 2003 or later over HTTP, no tunnel or VPN required
A
Resource Booking Attendant B
Calendar AttendantUnified Messaging
Voice messaging system
Fax receiving system
Consolidated management for voice mail, e-mail, fax
Voice and fax messages delivered alongside e-mail in user inboxes
Voice mail client integration in Outlook Web Access and Outlook 2007 for in-place playback and note taking
Outlook Voice Access - speech-enabled dial-in access to e-mail, calendar, contacts, voice mail and corporate directory
Speech-enabled automated attendantWeb-Based Messaging
Outlook Web Access - Outlook-like web e-mail client
Feature Exchange Server 2000
Exchange Server 2003
Exchange Server 2007
Search
GZIP compression
Forms-based authentication
Global address list access
Spell check
Tasks
Scheduling Assistant
WebReady Document Viewing
LinkAccess to SharePoint document libraries and UNC file shares
Information Rights Management (IRM) pre-licensing to speed up access to protected content
Schedulable Out of Office messages
Out of Office messages configurable by internal or external recipient
Self-service Unified Messaging PIN reset
Self-service remote wipe of Exchange ActiveSync mobile devices
Public folder access F
Support for rules F
Feature Exchange Server 2000
Exchange Server 2003
Exchange Server 2007
Support for S/MIME FMobile Messaging
Exchange ActiveSync
Direct Push of e-mail, calendar, contacts, tasks
E
Data protection using remote wipe, local wipe, enforced pins and policies
E
GZIP compression E
Support for a range of devices through Exchange ActiveSync protocol
Per user device policies
Over-the-air search of the remote mailbox from mobile device
Out of Office set from the device
Support for HTML e-mail
Improved meeting handling - reply with message or forward
Support for S/MIME E F
A) Requires Windows Server 2003 or later
B) Requires Auto Accept Agent for certain functionality
C) Unified Messaging requires Enterprise CAL
D) Not available at Release to Manufacturing (RTM)
E) With SP2
F) With SP1
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Operational Efficiency
Key: = Feature included = Feature not included
Feature Exchange Server 2000
Exchange Server 2003
Exchange Server 2007
Performance and Scalability
Cached Exchange Mode (Outlook 2003 or later)
Suppression of Out of Office messages to distribution lists
Native x64 application
Storage optimization; alternatives for less expensive storage (direct attached storage, iSCSI)
Active Directory site-based routing
Bandwidth optimization through efficient, schedulable, prioritized routingAdministration
Automatic error reporting
Exchange Best Practice Analyzer support for tuning and optimization
Exchange Troubleshooting Assistant support for mail flow, database, and performance issues
Exchange Management Console
Feature Exchange Server 2000
Exchange Server 2003
Exchange Server 2007
Multiple Windows forest support
Free/busy visibility across forests
A A
Management Pack for Microsoft Operations Manager (MOM)
Public folder management B B E
Internet Mail Connection Wizard
Cross-forest Kerberos authentication with Outlook 2003 or later
Dynamic distribution lists
Multi-user move mailbox capabilities
Queues centralized on a per-server basis
Exchange Management Console discoverability improvements
Exchange Management Shell - command line interface
Toolbox built in to Exchange Management Console
Visibility to multiple queues at a time
Automatic server updates and patches
Integration of Exchange
Feature Exchange Server 2000
Exchange Server 2003
Exchange Server 2007
Analyzers in Exchange Management Console toolbox
Flexible permissions model - integrated with Active DirectoryDeployment
Deployment and management by server role
Exchange Best Practices Analyzer integrated in setup - pre-requisite checks automatic
Single migration engine
Autodiscover - Outlook 2007 automatic discovery and profile configuration
Scriptable deployment using Exchange Management ShellExtensibility and Programmability
Collaboration Data Objects (CDO)
D
WebDAV API
Outlook Web Access Web Parts
Web services API
.Net integration via Exchange Management Shell
Free/Busy Web service
A) Using Inter-Organization Replication Tool
B) Using the Exchange Management Console
C) Using the Exchange Management Shell
D) Collaboration Data Objects (CDO) for Workflow and Collaboration Data Objects for Exchange Management (CDOEXM) cut: see the Discontinued Features and De-Emphasized Functionality on the Exchange Server TechCenter for alternatives and more information.
E) With SP1
