From owner-freebsd-isp Thu Apr 10 23:03:20 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id XAA28630 for isp-outgoing; Thu, 10 Apr 1997 23:03:20 -0700 (PDT) Received: from ns.cs.hku.hk (ns.cs.hku.hk [147.8.178.10]) by freefall.freebsd.org (8.8.5/8.8.5) with SMTP id XAA28621 for ; Thu, 10 Apr 1997 23:03:15 -0700 (PDT) Received: from champion (champion.cs.hku.hk) by ns.cs.hku.hk with SMTP id AA25475 (5.67b/IDA-1.5 for ) Fri, 11 Apr 1997 14:01:30 +0800 Received: by champion (4.1/S2.0-sunos4) id AA11398; Fri, 11 Apr 97 14:00:10 HKT Date: Fri, 11 Apr 1997 14:00:10 +0800 (HKT) From: Doug Kwan ~{9XUq5B~} To: isp@freebsd.org Subject: Stop relaying spam mail. Message-Id: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-isp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Hi all, Is there any way to stop relay spam mails? The mail host of the ISP I am running becomes a favourite relay for a jerk. That guy sends thousands of mails from another site and uses our mail host as a relay. Worse, that guy uses fake addresses so that all flames and complaints go to our postmaster. My strategy for this is to block all mail from the site from which the mails originates, sent a complaining mail to his/her postermaster and *hope* the system adminstrator to do something about that. Is there any better way to deal with such situation? -Doug Kwan