This article is about postal services. For electronic mail, see Email. For other uses, see Mail (disambiguation) and Postal service (disambiguation). This article includes a list of references, but its sources remain unclear because it has insufficient inline citations . Please help to improve this article by introducing more precise citations. (December 2008) (Learn how and when to remove this template message) A universal symbol of mail - an envelope A USPS mail truck in the United States The mail or post is a system for physically transporting postcards, letters, and parcels. [1] A postal service can be private or public, though many governments place restrictions on private systems. Since the mid-19th century, national postal systems have generally been established as government monopolies, with a fee on the article prepaid. Proof of payment is often in the form of adhesive postage stamps, but postage meters are also used for bulk mailing. Modern private p...
