From owner-freebsd-questions Sun Sep 7 09:06:18 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id JAA26296 for questions-outgoing; Sun, 7 Sep 1997 09:06:18 -0700 (PDT) Received: from mail.mexcom.net (mail.mexcom.net [206.103.64.97]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id JAA26289 for ; Sun, 7 Sep 1997 09:06:13 -0700 (PDT) Received: from mexcom.net (ppp-6.mexcom.net [206.103.65.198]) by mail.mexcom.net (8.8.5/8.8.5) with ESMTP id LAA02308; Sun, 7 Sep 1997 11:06:03 -0500 (CDT) Message-ID: <3412D104.3F84DB52@mexcom.net> Date: Sun, 07 Sep 1997 11:06:28 -0500 From: Webmaster Reply-To: eculp@mexcom.net Organization: Mexico Communicates X-Mailer: Mozilla 4.02b7 [en] (X11; I; FreeBSD 3.0-CURRENT i386) MIME-Version: 1.0 To: Stavros Patiniotis CC: questions@FreeBSD.ORG Subject: Re: Spammers Relay/use of SMTP References: <199709070630.QAA27261@bang.esc.net.au> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk Stavros Patiniotis wrote: > > > > On Sep 09, 1996 at 09:21:35AM -0500, Adam L. Simpson wrote: > > > Hello: > > > > > > Does anyone have a good way to stop spammers from using my mail server > as a > > > relay/smtp wothout shutting down smtp? > > > > Yup. Go visit http://www.sendmail.org, and install one of the > > check_rcpt rulesets for your mailer. This will allow you to > > limit who you want to relay to. > > If you would like, I can post a *really* nice set of rule sets, which will > allow you to specify a (group of) host which can relay through your system > in the format of Class A,B,C or individually. All the rulesets that where > listed in the sendmail pages required you to individually list each host! > (a pain in the ***). Another really nice ruleset is the DNS lookup one in > which the RCPT address must resolve ;) > > Seeya > stavros@esc.net.au I would be very interested. TIA ed