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The 1987 standard for the format of Usenet articles, itself a netnews adaptation of the mail format in RFC 822. For two decades it was the document everything from newsreaders to injection scripts was written against. Split and obsoleted in 2009 by RFC 5536 for article format and RFC 5537 for architecture, though old software and documentation still cite it.
Browse all terms in Protocol & Server Infrastructure, or see the full Usenet glossary.