mail order
noun [ U ]
COMMERCE (also mail-order) ukusa way of buying goods in which you choose what you want, usually from a catalogue or from a website, and it is sent to you by mail:
There are three methods of buying meat: supermarkets, butchers, and mail order.
through/by mail order She started a business selling clothes by mail order.
mail order business/company/supplier Our mail order business is slowly taking over our in-store sales.
mail-order clothes/cosmetics/plants
For mail order sales call this number.
mail-order
verb [ T ]
Mail-ordered goods accounted for much of the increase in sales.