From owner-freebsd-questions Tue Aug 27 5:22:34 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B732B37B400 for ; Tue, 27 Aug 2002 05:22:30 -0700 (PDT) Received: from tomts10-srv.bellnexxia.net (tomts10.bellnexxia.net [209.226.175.54]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8279A43E6A for ; Tue, 27 Aug 2002 05:22:29 -0700 (PDT) (envelope-from freymann@scaryg.shacknet.nu) Received: from scaryg.shacknet.nu ([64.231.133.168]) by tomts10-srv.bellnexxia.net (InterMail vM.5.01.04.19 201-253-122-122-119-20020516) with ESMTP id <20020827122212.FPD11695.tomts10-srv.bellnexxia.net@scaryg.shacknet.nu>; Tue, 27 Aug 2002 08:22:12 -0400 Received: from localhost ([::1] helo=scaryg.shacknet.nu) by scaryg.shacknet.nu with smtp (Exim 3.36 #1) id 17jfJL-0001T6-00; Tue, 27 Aug 2002 08:19:07 -0400 Date: Tue, 27 Aug 2002 08:19:07 -0400 From: ScaryG To: Mike Hogsett Cc: freebsd-questions@freebsd.org Subject: Re: Sendmail Rules Message-Id: <20020827081907.26bdcc42.freymann@scaryg.shacknet.nu> In-Reply-To: <200208270645.g7R6jDNL008296@axp.csl.sri.com> References: <200208270645.g7R6jDNL008296@axp.csl.sri.com> X-Mailer: Sylpheed version 0.8.1 (GTK+ 1.2.10; i386-portbld-freebsd4.4) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-MailScanner: Found to be clean Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Mon, 26 Aug 2002 23:45:13 -0700 Mike Hogsett wrote: > We are, as many of you are also, experiencing an increasing number of > forged from adresses in email sent to our domains. Traditionally we > have allowed external mail to claim to be internal senders for a number > of reasons. What I would like to do is only permit hosts within our > address space to claim to be user@ourdomain(s).com and deny all external > hosts claiming to be user@ourdomain(s).com (with an appropriate error > message). You want to completely eliminate outside use of your domain? Won't you kick some of your users in the butt by doing this? Why not look at SMTP AUTH instead? That way legitimate users can check and send mail from anywhere without being penalized globally. =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Scary Gerry -- Senior Systems Manager freymann@scaryg.shacknet.nu -For web-hosting, Perl, PHP & MySql programming see http://www.interpool.ca -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message