Compressing Drawers

  When you delete messages and folders, empty space is left
  in the drawer from which the messages or folders were
  deleted.  To make this empty space available for reuse, select
  the drawer to be compressed and choose Compress Drawer
  from the main window's Maintenance menu.

  You cannot compress an open drawer.

  When a drawer is compressed, the original (uncompressed)

  drawer is saved in a file.  A message is displayed showing the
  name of the file.  After ensuring that the compression has
  been successful, you should delete the uncompressed drawer.

  If multiple drawers are selected, all selected drawers will be
  compressed.  Individual messages appear prompting you to
  delete each uncompressed drawer.

  Ask your system manager how often to perform this task.

  Additional topics:

  *   Deleting a Message