Date: Mon, 05 May 1997 17:09:03 +0100 From: Brian Somers <brian@awfulhak.org> To: Peter Hawkins <peter@rhiannon.clari.net.au> Cc: danny@panda.hilink.com.au, jgrosch@sirius.com, hackers@FreeBSD.ORG, terry@lambert.org Subject: Re: SPAM target Message-ID: <199705051609.RAA14045@awfulhak.demon.co.uk> In-Reply-To: Your message of "Sat, 03 May 1997 12:18:42 %2B1000." <199705030218.MAA13322@rhiannon.clari.net.au>
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> Actually I would prefer that we consider hacking smtp to have it perform
> a verify on the incoming mail's origin and reject any attempted
> connections where that host is not reachable. I tire fast of the mail from
>
> make.lots.of.money@just.send.me.ten.dollars
>
> Basically if I would not be able to reply to a mail sendmail would not
> deliver it. Yes, some mail is rejected if a host goes down at precisely
> the wrong instant but that would be uncommon.
I transmit mail from "brian@shift.utell.net" or
"brian@shift.lan.awfulhak.org" which is a pretend machine behind
a firewall. I've got the gateway translating the from address as
"brian@utell.co.uk" or "brian@awfulhak.org" (which are valid), but
any smart-arsed mailer is going to say "something's wrong, go away".
I don't want to screw with my received lines (I don't think that's
ethical and I'll bet it's not going to be an option supported by
an m4 config file), but without doing so, I'm sending mail with
a bad origin.
> Peter
--
Brian <brian@awfulhak.org>, <brian@freebsd.org>
<http://www.awfulhak.org>;
Don't _EVER_ lose your sense of humour....
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