Use the Offline Folders tabbed section to specify
your offline folders. When you switch from online mode to offline mode,
Email and Calendar creates copies of the folders you select,
on your system. For more information about offline mode and online mode, see Working Offline.
Use the mail folder tree to select the folders that you want to work with offline. Click on the plus sign (+) beside a folder to expand the contents of the folder. To collapse the contents of a folder, click on the minus sign (-) beside the folder.