Postal clerks calculate postage for letters, parcels, and registered mail and receive payment at sales counters/postal wickets. They also sell stamps, prepaid mail/money orders, route mail, and perform other related clerical activities.
Mail sorters and mail room clerks sort, label, bag, and route mail in mail processing plants/internal mail rooms.
Letter carriers sort and deliver mail, record delivery of registered mail, and collect payments of cash-on-delivery parcels.
Couriers and messengers pick up and deliver letters, packages, tickets, parcels, and other items, travelling on foot or by bicycle within prescribed time periods.
Door-to-door distributors deliver flyers, handbills, newspapers, and similar items to residences/businesses.