Apple Mail: Restoring Deleted folder

  • Keep AppleMail offline
  • Find a copy of your offline mail folder using Spotlight Search
  • Save a copy of the folder on the desktop
  • Rename the folder from *.imapmbox to *.mbox
  • Open Apple Mail and take online
  • Select File -> Import Mailboxes
  • Import data from:  Apple Mail
  • Select the *.mbox file from your desktop