Automatically Refiling Messages

  This option specifies whether opened messages are
  automatically refiled.

  If the option is enabled, a message is moved to the MAIL
  folder after it is read.  If the MAIL folder does not exist, it is
  created.

  This option causes messages to be moved immediately.  If you
  delete or move the message, the delete or move operation
  will not be completed until the receive folder is closed.  The
  message is held in the MAIL folder until the receive folder is
  closed and the MAIL folder is reopened.

  Click on OK or Apply to save the profile settings.  Click on
  Cancel to leave the settings unchanged.

  Additional topics:

  *   Mail Receive Options Dialog Box