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- Path: sparky!uunet!ogicse!usenet.coe.montana.edu!uakari.primate.wisc.edu!ames!sgi!rhyolite!vjs
- From: vjs@rhyolite.wpd.sgi.com (Vernon Schryver)
- Newsgroups: comp.mail.headers
- Subject: Re: Reply-To: rewrite
- Message-ID: <pgrgjug@rhyolite.wpd.sgi.com>
- Date: 6 Sep 92 14:28:55 GMT
- Article-I.D.: rhyolite.pgrgjug
- References: <715016429@anthrax.cs.duke.edu> <11-PCNews-124beta@pos.pub.uu.oz.au>
- Organization: Silicon Graphics, Inc. Mountain View, CA
- Lines: 47
-
- In article <11-PCNews-124beta@pos.pub.uu.oz.au>, Mark.Purcell@pos.pub.uu.oz.au (Mark Purcell) writes:
- > jwt@duke.cs.duke.edu (Jeffrey W. Tannehill @ Duke University Computer Science Dept.; Durham, N.C.) once wrote....
- > >
- > > When receiving mail via a uucp connection our mail software modifies
- > >the "Reply-To:" header on the message. For example, the header
- > >
- > > Reply-To: testuser@testhost.testdomain.test
- > >
- > >may be modified to be:
- > >
- > > Reply-To: hornet!duke!testhost.testdomain.test!testuser
- >
- > I find it a real pain in the ass the way some uucp sites will take a FQDN
- > and modify
- > it into a mess of UUCP addressing, which may or may not make sense at the
- > other end. Usually they don't make any sense. So <replying> to mail
- > does not work, amongst other problems.
- >
- > It's bad enough when sites munge the From: line but there is a saving
- > grace which is the Reply-To: header which most will not munge. But if that
- > starts getting changed then there is really no hope for mail getting back.
- >
- > I am of the opinion that if an address if a FQDN that it shouldn't be UUCP
- > munged as a FQDN should make sense from anywhere :-).
-
-
- Well, it would be nice if FQDN's worked everywhere. Unfortunately,
- the root servers don't respond very quickly over UUCP links.
-
-
- A UUCP gateway necessarily must translate from whatever is happening on
- the Internet to whatever is right in the connected UUCP world.
-
- That necessarily means rewriting all addresses appropriately. In some
- UUCP worlds, only !-paths work. In other UUCP worlds, machine
- understand FQDN's. Reasonable Internet-UUCP gateways re-write FQDN's
- or not depending on whether the other end understands FQDN's. Years
- ago, I found it necessary to to assume the other end does not do FQDN's
- unless told otherwise. More recently, it has been effective to assume
- FQDN's are understood unless bounces are seen.
-
- Sendmail, for example, does not distinguish between Reply-To: and
- From: It sends them through the same re-write rules, and has since
- version 5.39, 85/01/05, according to version.c.
-
-
- Vernon Schryver, vjs@sgi.com
-