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Also known as: HDR
Returns the value of one named header across a range of articles, for example every Subject line between two article numbers. Cheaper than OVER when only a single field is wanted, and able to reach headers the overview database does not store. RFC 3977 standardized the same capability as HDR, with LIST HEADERS reporting which fields a server will serve.
Browse all terms in Protocol & Server Infrastructure, or see the full Usenet glossary.