Use the following options to configure users' Outlook profiles to use a local copy of the Exchange mailbox.
Do not configure Cached Exchange Mode – By default, Exchange mailboxes can be accessed from the Exchange Server computer, instead of being cached on users’ computers in an offline Outlook Data File (.ost).
Configure Cached Exchange Mode – Create an .ost file or use an existing .ost file. Users work with a local copy of their Exchange mailbox.
If you select Use Cached Exchange Mode, you can configure Cached Exchange Mode for users by using the following options:
Download only headers – Download copies of headers only from users’ Exchange mailboxes.
Download headers followed by the full item – Download copies of headers from users’ Exchange mailboxes and download copies of messages.
Download full items – Download copies of full messages (headers and message bodies) from users’ Exchange mailboxes.
On slow connections, download only headers – When a slow network connection is detected, download copies of headers only from users’ Exchange mailboxes.
Download shared non-mail folders – Download shared non-mail folders from other users’ mailboxes.
Download Public Folder Favorites – Download the list of Public Folder Favorites.