Full Folder list
If you noticed your accidental moving a little bit later, then the above method will not help you anymore. To prevent you from needing to click through every folder, you can also get a list of folders via the Folder Size option;
- Right click on the root of your mailbox.
- Choose Properties.
- Click the Folder Size… button
Outlook will now list all your folders in an easy to scroll window so you can quickly review the names of the folders that you have. It will also reveal the full folder path so that you can easily browse to it once you’ve found it.
Using the Folder Size dialog to find back a folder by name.
Note 1: If you already have an idea under which folder the moved folder could be, you can also use the Folder Size button of that folder to narrow down your search.