Newsgroups: news.admin
Path: utzoo!utgpu!jarvis.csri.toronto.edu!neat.ai.toronto.edu!rayan
From: rayan@ai.toronto.edu (Rayan Zachariassen)
Subject: Re: Usenet Top-Level Domain Census
Message-ID: <89Apr29.175638edt.39756@neat.ai.toronto.edu>
Organization: Department of Computer Science, University of Toronto
References: <164@ncis.tis.llnl.gov> <1660@vicom.COM>
Date: Sat, 29 Apr 89 17:56:29 EDT

In article <53391@uunet.UU.NET> rick@uunet.UU.NET (Rick Adams) writes:
# A valid messaged ID is 3 components:
# 	"anything but whitespace or @" "@" "valid hostname"
# 
# See RFC822, which the USENET specification defers to in many cases.
# 
# You can have any kind of garbage that you want to the lef tof the
# at sign, but you MUST have an @ and you must have a valid hostname

RFC822:

	msg-id = "<" addr-spec ">"

	addr-spec = local-part "@" domain

	local-part = word *("." word)

	word = atom / quoted-string

	atom = 1*<any CHAR except specials, SPACE, and CTL>

	specials are: ()<>#@,;:\".[]
	they must be within a quoted-string to occur in a word.

	quoted-string = <"> *(qtext/quoted-pair) <">

	qtext = <any CHAR excepting <">,     ; => may be folded
                     "\" & CR, and including
                     linear-white-space>

	quoted-pair = "\" CHAR                     ; may quote any char

The news rfc seems rather different than '822 in its description of the
requirement.  Which takes precedence?

rayan