Royal Mail is the national postal service of the United Kingdom. Historically, the General Post Office was a government department, which included — and still does — the Royal Mail delivery business; but it became The Post Office, a state-owned corporation, in 1969 and then a Public Limited Company wholly owned by HM Government in 2000. The name initially registered with Companies House was Consignia plc
the part of the British Post Office that deals with the collection and delivery of letters
Royal Mail Ship (sometimes Steam-ship, Steamer), usually seen in its abbreviated form RMS, is the ship prefix used for seagoing vessels that carry mail under contract to the British Royal Mail. They have the right to fly the pennant of the Royal Mail when sailing