Summary

For most organizations, no single feature of Exchange 2007 may justify an upgrade. However, once you start looking at a combined list of improvements to Exchange 2007, then the upgrade or replacement of an existing messaging system is compelling. For many organizations, the new high-availability features such as LCR and CCR will be the most important, and for others, improvements in calendaring and Outlook Web Access will be.

All in all, this latest generation of Exchange Server packs a big punch and will be a welcome addition to any organization. The following is a short list of the features that we find the most compelling:

• Improved performance because of more available RAM

• The ability to support users' demands for larger mailboxes

• Improved high-availability functions such as CCR and LCR

• Unified messaging integration

• Improved Outlook Web Access

• Automatic configuration of Outlook 2007 profiles

• Message transport rules and the Hub Transport role