How to Manage Send/Receive Groups in Outlook
If you want Outlook to check for changes to the address book every hour instead of every 24 hours, you can configure an appropriate send/receive group.
Important
Automatic offline address book downloads in Cached Exchange Mode cannot be controlled through the send/receive groups.
To manage send/receive groups in Outlook, perform the following procedure.
Procedure
To manage send/receive groups
In Outlook, on the Tools menu, click Options.
Click Mail Setup, and then click Send/Receive.
For More Information
For more information about working with send/receive groups, see Outlook Help.