You’ve 3 ways to recover deleted folders from outlook. You can try each of them to recover your Outlook contacts, messages, calendars, tasks or other critical info from the Deleted Items or Trash folder. If none of them works, Outlook Mail Recovery software is your best option to recover deleted folder from outlook.
Retrieve from Deleted Items or Trash:
If you’ve deleted a folder in Outlook by soft-delete, which means you hit the “Delete” button while right-clicking on the item, or drag and move the item to trash, the 1st place to check is the Deleted Items or Trash folders as per the type of e-mail account you’ve in Outlook.