Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!uxc!iuvax!rutgers!att!cbnewsh!wcs
From: wcs@cbnewsh.ATT.COM (Bill Stewart 201-949-0705 ho95c.att.com!wcs)
Newsgroups: news.sysadmin
Subject: Re: mail headers
Message-ID: <277@cbnewsh.ATT.COM>
Date: 26 Apr 89 03:06:32 GMT
References: <841@aber-cs.UUCP> <10766@bloom-beacon.MIT.EDU>
Reply-To: wcs@cbnewsh.ATT.COM (Bill Stewart 201-949-0705 ho95c.att.com!wcs)
Distribution: eunet,world
Organization: Your typical phone company involved in your typical daydream
Lines: 34

In article <10766@bloom-beacon.MIT.EDU> tytso@athena.mit.edu (Theodore Y. Ts'o) writes:
:Perhaps I'm being confused, but I was under the impression that "most"
:UUCP sites do not handle smart routing; that most sites did not run
:pathalias or something like it, so that if you sent mail to b!d!f, and
:site b did not talk directly to site d, it would normally bounce.

	Well, first of all, uucp doesn't *do* routing, mailers do.
	Uucp sends things one hop; traditional mailers use uucp to
	uux an rmail command at the next site.  rmail routes.

	But if you're a site with a dumb mailer, and you know a site
	with a smart mailer, you can use it.  When I send mail from
	skep2 (my newsbox) to an internet site, I normally send it to 
		att!foo.bar.edu!person
	Skep2 knows how to reach att (and most other AT&T machines),
	and att takes care of the rest.  

	On the subject of Received: lines vs From lines, both of
	them are things mailers do to articles they're transmitting,
	but neither one is the One True Header approach,and other
	mailers do even different things which may or may not show up.
	I prefer From ... \n>, partly because it's a wrapper rather
	than something inside the  message, but mainly because I'm
	used to it.  (I also get annoyed that Received: is typically
	two lines, so I can't just g/re/d it away in vi.)

	Rewriting From: lines is generally viewed as evil, and I
	don't trust them any more than I trust Path: - but Rnmail
	uses Path: and it usually works, so I use it on my old
	news server.  Now that I'm using Mark's news server, I'll
	use whatever he provides :-).
-- 
# Bill Stewart, AT&T Bell Labs 2G218 Holmdel NJ 201-949-0705 ho95c.att.com!wcs
# also found at 201-271-4712 tarpon.att.com!wcs