| Administration |
| Exchange System Manager running on Windows XP |
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| Queues are centralized on a per-server basis |
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| UI improvements |
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| All system queues are exposed |
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| Cookie authorization enablement |
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| Move log files and queue data using Exchange System Manager |
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| Public folder Send hierarchy |
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| Public folder Search capabilities |
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| Public folder Send Contents |
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| Public folder affinity to control referrals |
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| Public folder migration from Exchange Server 5.5 to Exchange 2003 |
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| Multi-user Move Mailbox function |
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| Dynamic distribution lists |
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| Management |
| Multiple Windows forest support (requires MMS) |
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| Automatic error reporting |
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| 1,700 Exchange-specific events using Microsoft Operations Manager (requires Microsoft Operations Manager) |
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| Deployment |
| Deployment and migration tools |
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| Active Directory Connector improvements |
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| Internet Mail Connection Wizard |
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| Multiple Mailbox Move tool |
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| Outlook Web Access |
| Outlook Web Access user interface (UI) and feature set improvements |
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| Outlook 2003 performance improvements through MAPI compression |
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| HTTP access from Outlook 2003 |
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| cHTML, xHTML, and HTML mobile phone browser support |
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| Exchange Server ActiveSync® |
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Requires Microsoft Mobile Information Server |
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| Pocket PC 2002 and Smartphone support |
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Requires Mobile Information Server |
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| Up-to-date notifications synchronization (requires Microsoft Windows Mobile 2003based devices such as Pocket PC and Smartphone) |
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