mail clerk(n = noun.person) postal clerk - a clerk in a post office; Array
is a kind of clerk

   A clerk in a post office. [WordNet 1.5]

1st-class mail, air mail, bank clerk, booking clerk, bulk mail, chain mail, clerk, coat of mail, dead mail, desk clerk, direct mail, electronic mail, express mail, fan mail, file clerk, filing clerk, first-class mail, hate mail, hotel clerk, hotel desk clerk, james clerk maxwell, junk mail, mail, mail bag, mail boat, mail call, mail car, mail carrier, mail coach, mail fraud, mail order, mail order house, mail out, mail pouch, mail service, mail slot, mail train, nixie clerk, postal clerk, registered mail, ring mail, room clerk, shipping clerk, shop clerk, snail mail, surface mail, tally clerk, third-class mail, town clerk, voice mail