mailroom definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a room or office, as in a business or organization, in which incoming and outgoing mail is processed, sorted, etc.
mailroom definition by American Heritage Dictionary
A room in which ingoing and outgoing mail is handled for a company or other organization.