How To Enable/Disable Cached Exchange Mode
1. File > Info > Account Settings > Account Settings
2. Double click on your Exchange account
3. Check/uncheck the box for 'Use Cached Exchange Mode'
Features Requiring Cached Exchange Mode
There are quite a number of features in Outlook 2010 that require Cached Exchange Mode in order for them to work or work better. The most notable features are:
1. Work Offline
2. Junk E-mail Filter
3. Instant Search
4. Conversation View (Show messages from other folders)
5. Clean Up
6. People Pane / Outlook Social Connector
