Message-Id: <199603112111.QAA22299@wilma.cs.utk.edu>
From: Keith Moore <moore@cs.utk.edu>
To: John Gardiner Myers <jgm+@cmu.edu>
cc: drums@cs.utk.edu, moore@cs.utk.edu
Subject: Re: Message format document outline 
In-reply-to: Your message of "Mon, 11 Mar 1996 13:40:56 EST."
             <YlF7Csm00WBwQ12PAf@andrew.cmu.edu> 
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Date: Mon, 11 Mar 1996 16:11:47 -0500
Sender: moore@cs.utk.edu

> > This is an (unmentioned) incompatible change in syntax which would
> > outlaw  "this".is."legal".under."RFC822"
> > 
> > Why the incompatible change?
[...]
> > By all means deprecate the use of particular obsolete syntaxes (e.g.
> > non-numeric timezones or multiple quoted strings in local-parts) but
> > please don't outlaw existing legal messages.
> 
> It would help greatly if you could demonstrate existence of such
> constructs.

I've certainly used this syntax before when mapping DECnet mail addresses to 
RFC822.  I changed to use the percent-hack when I found that one or two SMTP 
servers wouldn't accept it in a RCPT command.  Nevertheless, I'd personally be 
reluctant to disallow it, though it might be worthwhile to recommend against 
its use.

-Keith (NOT speaking as the Chair)

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