IdNNTPServer.pas contains Classes, Types, Procedures, and Functions needed to define and implement a multi-threaded NNTP server, as described in the Internet Standards documents:
RFC 977 - Network News Transfer Protocol (http://www.rfc-editor.org/rfc/rfc977.txt)
RFC 2980 - Common NNTP Extensions (http://www.rfc-editor.org/rfc/rfc2980.txt)