Usenet Etiquette - Please Read
     The body of the article comes here, with no blank line.

An article consists of several header lines, followed by a
blank  line,  followed  by  the  body of the message.  The
header lines consist of a keyword, a colon, a  blank,  and
some  additional  information.   This  is  a subset of the
ARPANET standard, simplified to allow simpler software  to
handle  it.   The   "from"   line may optionally include a
full name, in the format above, or use the  ARPANET  angle
bracket syntax.  To keep the implementations simple, other
formats (for example, with part  of  the  machine  address
after the close parenthesis) are not allowed.  The ARPANET
convention of continuation header lines (beginning with  a
blank or tab) is allowed.


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Certain  headers  are  required,   certain   headers   are
optional.   Any unrecognized headers are allowed, and will
be passed through unchanged.   The  required  headers  are
Relay-Version,  Posting-Version,  From,  Date, Newsgroups,
Subject,  Message-ID,  Path.   The  optional  headers  are
Followup-To,  Date-Received,  Expires,  Reply-To,  Sender,
References, Control, Distribution, Organization.

2.1  Required Headers

2.1.1  Relay-Version  This header line shows  the  version
of  the  program  responsible for the transmission of this
article over the immediate link, that is, the program that
is  relaying the article from the next site.  For example,
suppose site A sends an article to  site  B,  and  site  B
forwards  the  article  to  site  C.   The  message  being
transmitted from A to B would have a Relay-Version  header
identifying  the  program  running  on  A, and the message
transmitted from B to C would identify the program running
on  B.  This header can be used to interpret older headers
in an upward compatible way.  Relay-Version must always be
the  first  in  a message; thus, all articles meeting this
standard will begin with an upper case   "R".    No  other
restrictions are placed on the order of header lines.

The line contains two  fields,  separated  by  semicolons.
The fields are the version and the full domain name of the
site.  The version should identify the system program used
(e.g.,   "B")   as  well  as  a version number and version
date.  For example, the header line might contain

   Relay-Version: version B 2.10 2/13/83; site cbosgd.UUCP

This header should not be passed on to  additional  sites.
A  relay  program,  when  passing  an  article  on, should
include only its own Relay-Version, not the  Relay-Version
of  some other site.  (For upward compatibility with older
software, if a Relay-Version is found in a header which is
not the first line, it should be assumed to be moved by an
older version of news and deleted.)

2.1.2  Posting-Version    This   header   identifies   the
software  responsible  for  entering this message into the
network.  It has the same  format  as  Relay-Version.   It
will  normally  identify  the same site as the Message-ID,
unless the posting site is serving  as  a  gateway  for  a
message  that  already  contains a message ID generated by
mail.  (While it is permissible for a gateway  to  use  an
externally  generated message ID, the message ID should be
checked to ensure it conforms to this standard and to  RFC
822.)




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2.1.3  From  The From line contains the electronic mailing
address  of  the  person who sent the message, in the ARPA
internet syntax.  It may optionally also contain the  full
name  of  the person, in parentheses, after the electronic
address.  The electronic address is the same as the entity
responsible for originating the article, unless the Sender
header is present, in which case the From header might not
be  verified.   Note  that  in  all site and domain names,
upper  and  lower  case  are  considered  the  same,  thus
mark@cbosgd.UUCP,  mark@cbosgd.uucp,  and mark@CBosgD.UUcp
are all equivalent.  User names may or  may  not  be  case
sensitive,   for   example,   Billy@cbosgd.UUCP  might  be
different from BillY@cbosgd.UUCP.  Programs  should  avoid
changing  the case of electronic addresses when forwarding
news or mail.

RFC 822 specifies that all text in parentheses  is  to  be
interpreted as a comment.  It is common in ARPANET mail to
place the full name of the user in a comment at the end of
the  From  line.   This  standard  specifies  a more rigid