Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!utgpu!water!watmath!clyde!rutgers!ames!necntc!auspyr!joe
From: joe@auspyr.UUCP
Newsgroups: comp.mail.misc,comp.mail.uucp
Subject: Re: whether to prefix myhost! onto the From: or not..
Message-ID: <4323@auspyr.UUCP>
Date: Fri, 24-Apr-87 09:25:29 EST
Article-I.D.: auspyr.4323
Posted: Fri Apr 24 09:25:29 1987
Date-Received: Sat, 25-Apr-87 12:19:22 EST
References: <604@vixie.UUCP>
Organization: Austec, Inc., San Jose, CA. USA
Lines: 49
Xref: utgpu comp.mail.misc:189 comp.mail.uucp:449

> If SysV mailx doesn't have the ability to reply using From_ instead of From:,
> it loses...

Mailx doesn't lose anything as it sits back and smiles -- you are forgetting
that SOMEONE is losing! ... Did you ever use Mailx and try to reply to
From: user@domain with a To: and Cc: line??!  I've seen core dumps and
infinite loops leading to stray pointers. It's really a serious problem.
So what now?  Install ELM? Buy an AT&T source licence just to fix Mailx?
Maybe AT&T can "give away" the Mailx source along with a patch or twenty;
and it's a shame cause Mailx has alot of features UCB/Mail doesn't.

Actually, I haven't noticed ANY problems by modifying the header line
as host!user.  But then again, ain't bliss just great? ... 

As an experiment, I have created a mail-alias command for bounceback@auspyr.
It's a useless script that will send the incomming mail message back to the
person specified in the From: line. Give it a try and when you get the mail
back, try to reply to it and see what happens.

So you know, aliases are:
	bounceback:		"| /usr/local/uubin/bounceback"
	owner-bounceback:	joe
	
/usr/local/uubin/bounceback reads:

	# looks from From: from stdin and reply back to person; reply
	# contains orginal message
	tmpfile=/tmp/bnc$$
	cat > $tmpfile
	# get second arg on From: line
	# From: {host!user || user@domain} [ <Real Name> ]
	# awk is the easiest way for lazy people
	name=`grep '^From: ' $tmpfile | awk '{ print $2 }'`
	(
		echo '
	Bounce-back, Bounce-back, rolly polly Bounce Backs.
	
	Original Text Follows:
	' ; sed 's/^/> /' < $tmpfile
	) | /usr/ucb/Mail -s 'Mail Bounce Back' $name

I know I could of created a mailer-error, but this is a bit more graceful.
(Like I said, it's useless)

-- 
"No matter      Joe Angelo, Sr. Sys. Engineer @ Austec, Inc., San Jose, CA.
where you go,   ARPA: aussjo!joe@lll-tis-b.arpa       PHONE: [408] 279-5533
there you       UUCP: {sdencore,cbosgd,amdahl,ptsfa,dana}!aussjo!joe
are ..."        UUCP: {styx,imagen,dlb,jmr,sci,altnet}!auspyr!joe