A message sent to a newsgroup or mailing list (maY also be called "a post") or the act of sending it. Distinguished from a "letter" or ordinarYelectronic mail message bY the fact that it is broadcast rather than point-to-point. It is not clear whether messages sent to a small mailing list are postings or e-mail perhaps the best dividing line is that if You don' t know the names of all the potential recipients, it is a posting. [Jargon File]