Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.1 6/24/83; site hou3c.UUCP
Path: utzoo!watmath!clyde!burl!hou3c!eric%ucbarpa@Berkeley.ARPA
From: eric%ucbarpa@Berkeley.ARPA (Eric Allman)
Newsgroups: net.mail.headers
Subject: Re: "Return-Path" vs. "From"
Message-ID: <5638.31.445827921@ucbarpa>
Date: Thu, 16-Feb-84 20:05:00 EST
Article-I.D.: hou3c.287
Posted: Thu Feb 16 20:05:00 1984
Date-Received: Sat, 18-Feb-84 04:49:43 EST
Sender: ka@hou3c.UUCP (Kenneth Almquist)
Lines: 13
Phone: (415) 548-3211
To: Christopher A Kent 
In-Reply-To: Your message of 7 Feb 1984 0806-EST (Tuesday). <8402071306.AA15144@merlin.ARPA>
Fcc: mail

Gosh Chris, I'm awfully sorry that I have tried to do the right
thing instead of perpetuating the insanity that has characterized
(and sadly, continues to characterize) the UNIX mail system.

Sendmail passes the information it gets from the received envelope
into the transmitted envelope.  If the mailer is a program rather
than an SMTP channel, the "envelope" consists of the command line
arguments.

The version of Mail that comes with sendmail works, as does MH.
This seems to cover 90% of the 4.2 users.

eric