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Cached Exchange Mode

Because Outlook 2003 can automatically detect your network conditions, it switches between the local mailbox and the Exchange server mailbox to provide the optimal experience.

Cached Exchange mode always knows the status of the connection to the messaging server to determine online/offline status. Using Outlook 2003 with the “Use Local Copy of Mailbox” (Cached Exchange Mode) option enabled provides a better user experience when a connection to the Microsoft Exchange server is slow or unavailable. By providing different levels of optimization, Outlook 2003 automatically detects and adapts to changing connection environments, such as disconnecting from a corporate LAN, going offline, and then re-establishing a connection to the server via a dial-up connection.

Automatic Synchronization with Exchange Server
Outlook relies on server-to-client notifications to determine when there are changes on the server that need to be downloaded. You no longer need to do manual refreshs to ensure your local mailbox is up to date. When operating in Cached mode, the notification process ensures that your local mailbox is always up to date.

Benefits of Cached Mode
In Cached Exchange Mode users work from a local copy of the mailbox called the OST file. Simultaneously, in the background, Outlook 2003 synchronizes data from the Exchange server to the local copy of the mailbox.
More reasons to take advantage of Cached Exchange Mode include:

• Take advantage of Outlook’s new Junk E-mail filtering while running in Cached Exchange Mode.
• E-mail is stored both locally and also on the Exchange Server Store.
• Access e-mail via other technologies such as OWA, OMA, EAS and RPC over HTTP, because your e-mail is stored and accessible from the server store (mailbox).