Microsoft Exchange Server

• Exchange Server 2003 Standard Edition is designed to meet the messaging and collaboration needs of small and medium-size corporations. With Exchange Server 2003 Standard Edition, you get:
• Exchange Server 2003.
• The flexibility to be configured as a Microsoft Office Outlook Web Access front-end server.
• Mailbox stores and public folder stores that are each limited to 16-gigabyte (GB) maximum.
• Recovery Storage Group.
• Exchange Server 2003 Enterprise Edition is designed for large enterprise corporations and enables you to create multiple storage groups and multiple databases. Exchange Server 2003 Enterprise Edition provides an 8-terabyte (TB) public folder store that eases the constraints on the amount of data that a single server can manage. With Exchange Server 2003 Enterprise Edition, you get:
• All the features and products included in Exchange Server 2003 Standard Edition.
• Database size limited only by your hardware (with a maximum size of 16 terabytes).
• Multiple databases per server.
• Clustering support for four nodes on Microsoft Windows 2000 Advanced Server or eight nodes on Microsoft Windows Server 2003 Enterprise Edition.

• Active Directory Integration
• Integrated with Windows Server 2003 or Windows 2000 Active Directory directory service for lower TCO
• Single-seat administration with Microsoft Management Console (MMC)
• Policies for quickly changing a wide range of objects such as mailboxes
• Use of Windows Server 2003 system access control lists (SACLs) to make secure e-mail messaging and collaboration easy
• The password migration in the Windows Active Directory Migration Tool (ADMT) 2.0 helps ease the migration of Microsoft Windows NT Server 4.0 accounts to Active Directory
• Rapid enablement of user services such as mobile access (requires Exchange Server 2003 Service Pack 1 [SP1] or later)
• Scalable database architecture
• Up to 16 terabytes per mailbox database and up to 20 mailbox databases per server
• Multiple message databases per server running Exchange Server for fast backup and restore, flexible data management, and increased reliability
• Coexistence
• Organizations do not have to upgrade or migrate overnight. Exchange Server 2003 operates with Windows 2000 or Windows Server 2003 and coexists with Exchange Server 5.5 and Exchange 2000 Server, all within the same topology.
• Exchange Server 2003 also operates with Microsoft Office Outlook 2003, Outlook 2002 (Office XP), and Outlook 2000. Outlook Web Access can be used on other client platforms through browsers.
• Exchange Server 2003 with SP1 and later includes connectors for Novell GroupWise 5.x and IBM Lotus Notes R5 and R6.
• Enhanced security
• Secure defaults. Simple Mail Transfer Protocol (SMTP) relay, Post Office Protocol 3 (POP3), and Internet Message Access Protocol (IMAP) are turned off by default.
• Improved ability to restrict connections and e-mail messages
• Support for logging off Outlook Web Access automatically, Secure/Multipurpose Internet Mail Extensions (S/MIME), HTML, and attachment blocking
• New antispam features and integration with Office Outlook 2003 Safe and Block Sender lists
• New Virus Scanning API 2.5 for improved antivirus solutions
• Support for Windows Server 2003 Internet Information Services (IIS) 6.0, which isolates applications
• Low TCO messaging and collaboration environment
• Multiple database architectures create new consolidation opportunities for users of Exchange Server 5.5.
• Enhanced administrative tools make mailbox management easier.
• New client logging and error reporting tools enable faster problem resolution.
• Integration with Windows Server 2003 Volume Shadow Copy service provides fast, reliable backup and restore.
• Outlook Web Access
• Improved Outlook Web Access provides fast access to Exchange Server from the Internet with greater security. The new user interface (UI) is updated to mirror the Outlook 2003 UI and includes new features such as spelling checker, tasks lists, S/MIME support for security, and HTML content blocking for security.
• Administration tools are enhanced Outlook Web Access (requires Exchange Server 2003 SP1 or later).
• Integrated support for mobile devices
• Windows Mobile—powered mobile devices can synchronize directly with Exchange Server 2003 for enhanced security. For a list of devices supported by Exchange Server 2003 and devices supported after you add the Microsoft ASP.NET Mobile Controls Device Update, see the Exchange Server 2003 Support for Mobile Devices page.
• Integrated support for HTML, Extensible HTML (XHTML), Wireless Application Protocol (WAP) 2.x, and compressed HTML (CHTML) mobile microbrowsers.
• Integration with Outlook 2003
• Enhanced performance and Exchange Server Cached Mode enables use over low bandwidth as well as over latent and poor network connections.
• Improved UI enables users to prioritize overloaded Inboxes.
• Exchange Server 2003 SP1 and later provides support for access over the Internet without the need for a virtual private network (VPN) (remote procedure call [RPC] over Hypertext Transfer Protocol Secure Sockets Layer [RPC/HTTPS]).
• High Availability
• Improved virtual memory management
• Improved Outlook performance logging to the server
• Faster cluster failover times with Windows Server 2003
• Support for four-node and eight-node clusters
• Support for Windows Server 2003 IIS 6.0, which isolates applications
• Faster deployment
• New resources and prescriptive guidance on deployment
• New premigration analysis and reporting tools
• New Active Directory Migration Tools (ADMT 2.0)
• Active Directory Connector Wizard
• Internet Mail Setup Wizard
• Mailbox and public folder migration tools
• Support for cross-site, mixed-mode migrations from Exchange Server 5.5 to Exchange Server 2003 (requires Exchange Server 2003 SP1 or later)
• Clustering support
• Eight-way clustering (requires Windows Server 2003, Enterprise Edition)
• Support for Volume Mount Point surpasses previous 26-drive letter limitation (requires Exchange Server 2003 SP1 or later)
• Improved fail-over performance (requires Exchange Server 2003 SP1 or later)