Translation error into Korean.
When I click the right button with the cursor on Inbox, there comes 6 pop-up menus.
One of them reads "빈폴더" which means "Empty folder" with the meaning of "Empty" as an adjective.
So "빈폴더" actually means Folder that is empty.
You should change "빈폴더" to "폴더비우기" which means dump all the mails in the folder.
Please double check when you translate. It is somewhat disappointed Microsoft simply use a translating machine without checking it with Korean employees!
Gilbert Bouc commented
Incorrect translation to German junk email Folder for button
it says "leerer Ordner" but should be e.g. "Ordner leeren".
Invalid translation for Ukranian option on 'Empty folder'. "Папка порожня" is wrong, should be "очистити папку"/"видалити все"