From owner-freebsd-isp Fri Apr 11 05:55:38 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id FAA16364 for isp-outgoing; Fri, 11 Apr 1997 05:55:38 -0700 (PDT) Received: from buffnet4.buffnet.net (buffnet4.buffnet.net [205.246.19.13]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id FAA16357 for ; Fri, 11 Apr 1997 05:55:35 -0700 (PDT) Received: from buffnet11.buffnet.net (shovey@buffnet11.buffnet.net [205.246.19.55]) by buffnet4.buffnet.net (8.7.5/8.7.3) with SMTP id IAA08122; Fri, 11 Apr 1997 08:55:05 -0400 (EDT) Date: Fri, 11 Apr 1997 08:55:05 -0400 (EDT) From: Steve To: Doug Kwan ~{9XUq5B~} cc: isp@freebsd.org Subject: Re: Stop relaying spam mail. In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-isp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk The newest sendmail, I think, has a way to block relays. On Fri, 11 Apr 1997, Doug Kwan ~{9XUq5B~} wrote: > 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 > >