From owner-freebsd-hackers  Fri Aug  1 14:41:06 1997
Return-Path: <owner-freebsd-hackers>
Received: (from root@localhost)
          by hub.freebsd.org (8.8.5/8.8.5) id OAA14046
          for hackers-outgoing; Fri, 1 Aug 1997 14:41:06 -0700 (PDT)
Received: from DNS.Lamb.net (root@DNS.Lamb.net [207.90.181.1])
          by hub.freebsd.org (8.8.5/8.8.5) with ESMTP id OAA14037
          for <hackers@FreeBSD.ORG>; Fri, 1 Aug 1997 14:40:59 -0700 (PDT)
Received: (from uucp@localhost)
	by DNS.Lamb.net (8.8.6/8.8.5) id OAA26860;
	Fri, 1 Aug 1997 14:40:50 -0700 (PDT)
Received: from gatekeeper.Alameda.net(207.90.181.2)
 via SMTP by DNS.Lamb.net, id smtpd026858; Fri Aug  1 14:40:49 1997
Received: (from ulf@localhost) by Gatekeeper.Alameda.net (8.8.6/8.7.6) id OAA21956; Fri, 1 Aug 1997 14:40:43 -0700 (PDT)
From: Ulf Zimmermann <ulf@Gatekeeper.Alameda.net>
Message-Id: <199708012140.OAA21956@Gatekeeper.Alameda.net>
Subject: Re: Mail question
In-Reply-To: <Pine.OSF.3.96.970801140340.29853R-100000@sag.space.lockheed.com> from "Brian N. Handy" at "Aug 1, 97 02:05:26 pm"
To: handy@sag.space.lockheed.com (Brian N. Handy)
Date: Fri, 1 Aug 1997 14:40:42 -0700 (PDT)
Cc: dan@dpcsys.com, hackers@FreeBSD.ORG
X-Mailer: ELM [version 2.4ME+ PL31 (25)]
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Sender: owner-freebsd-hackers@FreeBSD.ORG
X-Loop: FreeBSD.org
Precedence: bulk

I would also take a lok at smtpd from the Juniper firewall toolkit.
http://www.obtuse.com/
It has in the SMTP receiving part filters for allowing many things.
the newest beta which should out in the next days, has even
regular expression to help match certain spammers.

> 
> >Looks more like you replied to a mailing list question from someone
> >in HK :)  ctladdr is the sender (you), to is victorwu@hksm.com and relay
> >is the correct MX for hksm.com
> 
> Arrgh, after thinking about it a while longer it finally kicked in what
> that was, and ayep it was my fault. (sigh.)  However, it did finally kick
> me into action to figure out how to turn some of this stuff off here at
> our site. 
> 
> > [check_* rules]
> >If you have trouble figuring out how the rules work I have a line by line
> >description at http://www.beach.net/~dan
> 
> Hey, this looks great!  I'll put some time into this over the weekend.
> Thanks!
> 
> 
> Cheers,
> 
> Brian
> 
> 


-- 
Ulf.

--------------------------------------------------------------------------
Ulf Zimmermann, 1525 Pacific Ave., Alameda, CA-94501, #: 510-769-2936
Alameda Networks, Inc. | http://www.Alameda.net  | Fax#: 510-521-5073