Delete the files you don't need and then close the Mail Downloads folder. These are all attachments that you've either opened in Mail or viewed in Quick look. Here you'll see a list of files that Mac Mail has saved. Type in Mail Downloads and click on the folder when it shows up to open it.Enjoy free shipping and returns on all orders. Offering more than 100 shades of professional quality cosmetics for All Ages, All Races, and All Genders.