If a connection from your computer to the server running Exchange isn't available, Microsoft Office Outlook 2007 switches to Trying to connect or Disconnected.If the connection is restored, Microsoft Office Outlook 2007 automatically switches back to Connected or Connected (Headers).Any changes you make while a connection to the server isn't available are synchronized automatically when a connection is available.You can continue to work while changes are synchronized.Microsoft is conducting an online survey to understand your opinion of the Technet Web site.If you choose to participate, the online survey will be presented to you when you leave the Technet Web site.
For example, when you use a fast connection, Office Outlook 2007 copies the header, body, and attachments of an email item from the email server to your computer.
You have quick access to the server running Exchange.
If you disconnect the laptop from the LAN, Outlook switches to Trying to connect status.
When a slower connection is selected, only headers are automatically downloaded.
The body and any associated attachments are downloaded only when requested by you, or as necessary for synchronization with personal digital assistants (PDAs), auto archiving, and some client-side rules.
If you want to turn off Cached Exchange Mode, repeat the steps, but clear Use Cached Exchange Mode.