- published: 07 Apr 2015
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Electronic mail, commonly known as email or e-mail, is a method of exchanging digital messages from an author to one or more recipients. Modern email operates across the Internet or other computer networks. Some early email systems required that the author and the recipient both be online at the same time, in common with instant messaging. Today's email systems are based on a store-and-forward model. Email servers accept, forward, deliver and store messages. Neither the users nor their computers are required to be online simultaneously; they need connect only briefly, typically to an email server, for as long as it takes to send or receive messages.
An email message consists of three components, the message envelope, the message header, and the message body. The message header contains control information, including, minimally, an originator's email address and one or more recipient addresses. Usually descriptive information is also added, such as a subject header field and a message submission date/time stamp.
Andrea Mitchell (born October 30, 1946) is an American television journalist, anchor, reporter, and commentator for NBC News based in Washington, D.C.. She is the NBC News Chief Foreign Affairs Correspondent, and has recently reported on the 2008 Race for the White House for NBC News broadcasts, including NBC Nightly News with Brian Williams, Today, and MSNBC. She anchors Andrea Mitchell Reports airing at 1pm–2pm ET weekdays on MSNBC, has appeared on and guest hosted Meet the Press, and is often a guest on Hardball with Chris Matthews and The Rachel Maddow Show.
Mitchell graduated with a B.A. in English literature from the University of Pennsylvania in 1967, where she served as news director of student radio station WXPN. She stayed in Philadelphia after graduation, hired as a reporter at KYW radio. Mitchell rose to prominence as the station's City Hall correspondent, and also reported for sister station KYW-TV. She moved to CBS affiliate WTOP in Washington, D.C., in 1976. Two years later, Mitchell moved to NBC's network news operation, where she served as a general correspondent. In 1979, she was named the NBC News energy correspondent and reported on the late 1970s energy crisis and the Three Mile Island nuclear accident. Mitchell also covered the White House from 1981 until becoming chief congressional correspondent in 1988.