A mailroom is a place where incoming and outgoing mail is processed. However, there are many other words that can describe this type of workspace. Synonyms for mailroom include post room, post office, sorting room, inbound/outbound section, delivery area, shipping and receiving department, dispatch center, correspondence center, document management center, and letter department. Each of these words carries its own connotations and can evoke different mental images. However, they all describe the same essential function of a space designated for sorting and distributing mail. Whether you call it a mailroom, post room, or dispatch center, the function remains the same.