From: Charles Lindsey (chl@clw.cs.man.ac.uk)
Date: Fri May 10 2002 - 08:16:15 CDT
In <87661xhnj5.fsf@erlenstar.demon.co.uk> Andrew Gierth <andrew@erlenstar.demon.co.uk> writes:
> Charles> No, but it does make sense that whatever folding rules we
> Charles> have should apply evenly across all headers. And Newsgroups
> Charles> does appear in email quite often, as it happens.
>Newsgroups is merely a user-defined header in email and is therefore
>opaque. I reiterate my objection.
> Charles> They are all SHOULD NOT generate.
>Why do you keep repeating this when I've already pointed out that it's
>untrue for Path? You can read the SHOULDs for yourself in the spec.
If you read the context in which I said that, you will see that I was
referring to Newsgroups and others like it, not to Path.
> Charles> But the evidence is that folded paths propagate perfectly
> Charles> well. The only problem is that some agents unfold them
> Charles> before passing them on, which is naughty, but does not cause
> Charles> irreparable harm.
>That's not the only problem. And I'm sorry, but injecting a handful of
>articles and observing that they show up on some other sites does not
>constitute much of a test.
I injected a handful of articles, and asked whether any reader of this
List had failed to receive them, or had received them mangled beyond
recognition. Nobidy reported anything (in fact, I was quite surprised that
the test went so well).
If you know of a server with significant use that fails to pass on the
whole of a folded Path to its downstreams (with no path-identities
omitted), then please let us know, because the evidence from the test was
that the majority of installed servers did not have a problem.
-- Charles H. Lindsey ---------At Home, doing my own thing------------------------ Tel: +44 161 436 6131 Fax: +44 161 436 6133 Web: http://www.cs.man.ac.uk/~chl Email: chl@clw.cs.man.ac.uk Snail: 5 Clerewood Ave, CHEADLE, SK8 3JU, U.K. PGP: 2C15F1A9 Fingerprint: 73 6D C2 51 93 A0 01 E7 65 E8 64 7E 14 A4 AB A5