Message-ID: <wku5HSq00WBwAMeYwf@andrew.cmu.edu>
Date: Mon,  1 Jan 1996 16:40:46 -0500 (EST)
From: John Gardiner Myers <jgm+@CMU.EDU>
To: drums@cs.utk.edu
Subject: Re: Header to label lists (was untitled)
In-Reply-To: <1227571*jpalme@su-kom.dsv.su.se>
References: <0ktKNGK00WBw4J9dIn@andrew.cmu.edu>
	<1227571*jpalme@su-kom.dsv.su.se>

"Jacob Palme DSV-SU/KTH" <jpalme@dsv.su.se> writes:
> (1) Valuable information to the recipient
> 
> (2) Can be used in a client to filter messages from certain lists
>     in special ways (e.g. to a folder for each list)

This problem is not specific to lists.  The problem can be solved,
today, by putting the information in the address that gets subscribed
to the list.  I can, for example, subscribe jgm+drums@cmu.edu to this
list and have the resulting messages filed differently.  This will
even work with lists that don't know to generate newfangled headers.

> (3) Can be used for loop detection of circular list memberships

Inserting and searching for a Recieved: header with appropriate "by"
and "for" fields is sufficient to solve this problem.  There is no
need to invent a new header for it.

-- 
_.John G. Myers		Internet: jgm+@CMU.EDU
			LoseNet:  ...!seismo!ihnp4!wiscvm.wisc.edu!give!up