Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.1 6/24/83; site ucbvax.UUCP
Path: utzoo!linus!decvax!ucbvax!fair
From: fair@ucbvax.UUCP (Erik E. Fair)
Newsgroups: net.mail.headers
Subject: Re: "From " vs. "From:" in Sendmail
Message-ID: <163@ucbvax.UUCP>
Date: Sat, 25-Feb-84 16:26:05 EST
Article-I.D.: ucbvax.163
Posted: Sat Feb 25 16:26:05 1984
Date-Received: Sun, 26-Feb-84 01:35:57 EST
References: <450@sun.uucp>
Organization: U.C. Berkeley
Lines: 58


Uh, I have a small nit to pick with John Gilmore. The example he used
for showing the proper interpretation of `correct' mail headers from
the UUCP land was wrong:

>>For mail which has been passed solely thru uucp sites, the "From " line
>>is clearly correct, since the "From:" line has not been maintained at
>>(all) intermediate sites.  E.g.:
>>	From dual!allegra!cbosgd!fair Thu Feb 23 17:01:34 1984
>>	From: dual!cbosgd!fair
>>
>>The win would have been to make the envelope right for all uucp
>>traffic, (which it already was for strictly-uucp traffic) and have
>>sendmail fix the From: line to match the "From " line.  This has not
>>been done -- yet.  Is there a uucp/mail expert in the house who can tell
>>us WHY the envelope is "uucp" or some user, instead of the right thing?

I have been many things in my time, but never have I been cbosgd!fair.
I'm dual!fair or ucbvax!fair or fair@ucb-arpa.ARPA. The problem is that
some 4.2 BSD sites out there are running bogus versions of sendmail which
puts out the return address in the envelope in domain format. It gets
worse when the letter passes through a working sendmail sites, because
they try and undo the damage, and only succeed in hiding it. That letter
there started life

	From dual!fair

cbosgd changed that to

	From cbosgd!fair@dual.UUCP

and allegra changed that to 

	From dual!allegra!cbosgd!fair

It gets really fun when someone tries to reply to that. This bug
has been fixed by steve@nbires.UUCP, tjt@masscomp.UUCP,
postmaster@uwisc-rsch.ARPA, and eric@BERKELEY.ARPA
Some by my prodding them, some not.

If you spot one of these, complain until it gets fixed, because
all mail passing through the suspect site will have bogus return
addreses, and only the silly people who keep the entire routing map in
their heads (like me) will be able to get anything through the Emails.
(Mark Horton, are you listening? Do I have to beat this to death?)

	Please, Help Stamp Out Sendmail Errors by sending your
	tax deductible contributions to 

		Save the Network
		Box 10.2.0.78
		Berkeley, California 94720

Thank you.

	Erik E. Fair	ucbvax!fair	fair@ucb-arpa.ARPA

P.S.	For those on USENET: 10.2.0.78 is ucbvax's ARPANET address. :-)