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Path: utzoo!linus!philabs!cmcl2!seismo!lll-crg!dual!qantel!hplabs!hp-pcd!hpfcla!jad
From: jad@hpfcla.UUCP (jad)
Newsgroups: net.mail
Subject: Re: Orphaned Response
Message-ID: <47300004@hpfclo.UUCP>
Date: Tue, 6-Aug-85 18:41:00 EDT
Article-I.D.: hpfclo.47300004
Posted: Tue Aug  6 18:41:00 1985
Date-Received: Tue, 13-Aug-85 01:57:42 EDT
References: <3018@nsc.UUCP>
Organization: Hewlett-Packard - Fort Collins, CO
Lines: 59
Nf-ID: #R:nsc:3018:hpfclo:47300004:37777777600:2602
Nf-From: hpfclo!jad    Aug  6 14:41:00 1985

> /***** hpfclo:net.mail / nsc!chuqui /  7:03 pm  Jul 22, 1985*/
> I'm starting to see problems that look like smart mailers messing up
> addresses. I **think** it may have something to do with some of the
> assumptions in the gatech sendmail configuration files -- I'm hacking on
> them now and some things don't look quite right.

	Thanks, by the way, for starting a religious debate.	;-)

	Seriously -- crossing domains is a severe problem.  I got mail
	from John Quarterman in response to a posting.  Let me share
	with you part of the header.  My question is "how can I reply to
	this?" ... pretend I am a beginner.

> Date: Tue, 6 Aug 85 11:02:34 cdt
> From: ihnp4!purdue!jsq%im4u.UTEXAS@ut-sally.ARPA (John Quarterman)

	The system I am on does not talk to the ARPAnet, but the mailer
	I use (MH) gives '@' the highest precedence.  In trying to reply
	I try to send to ut-sally.ARPA.  Ugh.  The actual return addr.
	generated by MH looks like this:

To: ut-sally.ARPA!ihnp4!purdue!jsq%im4u.UTEXAS (John Quarterman)

	Could be that MH is damaged, but it should NOT be this tough to
	figure out how to reply to someone!

	How was this problem caused?  He sent mail to my Purdue account,
	via the ARPAnet, which forwarded to me, via UUCP.  Hence, the
	ihnp4!purdue tacked on.

	Mailers  should  leave the  sender's  address the hell alone.  I
	would  see  something  like  jsq@im4u.UTEXAS.ARPA  ...  now,  my
	machine does not know im4u (perhaps it came into existance since
	my database  was last  generated  -- the  inherent  problem with
	databases is that they always seem to be out of date).  But I do
	know the ARPA domain (well, OK, this should be the .EDU domain);
	and I may even know UTEXAS, so I don't go home hungry.

	When I reply to this mail (consider me a novice), my user-agent
	constructs the reply address, which (SHOCK!) just happens to
	be the exact same thing as is in his mail (ie. NO MUNGING EVER!).
	When I ship off my mail with the address jsq@im4u.UTEXAS.EDU (if
	I may), my mail delivery agent notices the mail is non-local,
	and sends it off.

	Okay, easier said than done.  There's a big difference between
	ut-sally.UTEXAS.EDU in the UUCP network (which it is) and the
	same ut-sally.UTEXAS.EDU in the ARPA network ... for one thing
	the UUCP mail will get there a hell of a lot slower and for
	another the ARPA mail will get there for sure (nearly).  Perhaps
	network information should be encoded in the domain?

				--	jad	 --
				John A. Dilley, FSD
				Fort Collins,    CO

ARPA:				terrapin@Purdue.EDU
UUCP:				{ihnp4}! hpfcla!jad
PHONE:				(303)226-3800 x4166