From owner-freebsd-stable Thu Jan 6 11:40:47 2000 Delivered-To: freebsd-stable@freebsd.org Received: from toronto.bricsnet.com (tor-44.wan.aecinfo.com [209.146.217.44]) by hub.freebsd.org (Postfix) with ESMTP id B93101560A for ; Thu, 6 Jan 2000 11:40:44 -0800 (PST) (envelope-from mitayai@bricsnet.com) Received: from mitayai (tor-51.wan.aecinfo.com [209.146.217.51]) by toronto.bricsnet.com (8.8.8/8.8.8) with SMTP id OAA24445; Thu, 6 Jan 2000 14:40:26 -0500 (EST) (envelope-from mitayai@bricsnet.com) From: "Will Mitayai Keeso Rowe" To: "Brad Knowles" , "David Wolfskill" , Subject: RE: Sendmail, 3.3-STABLE, relaying Date: Thu, 6 Jan 2000 14:43:19 -0500 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG ok, so how would i deny access to an entire C-Class? -----Original Message----- From: Brad Knowles [mailto:blk@skynet.be] Sent: January 6, 2000 12:32 PM To: Will Mitayai Keeso Rowe; David Wolfskill; freebsd-stable@FreeBSD.ORG Subject: RE: Sendmail, 3.3-STABLE, relaying At 11:48 AM -0500 2000/1/6, Will Mitayai Keeso Rowe wrote: > i want IPs resolving reversely as *.company.com to be able to relay through > that host. Keep in mind that any spammer that owns his own reverse DNS (which is not uncommon) can claim to be fred.company.com, and you would allow him to relay through your server. I strongly suggest that you allow the ability to relay *purely* by IP address, and if you wish to prevent anyone from being able to send you mail (by using the REJECT option), do that by hostname, envelope sender address, or IP address. -- These are my opinions -- not to be taken as official Skynet policy ____________________________________________________________________ |o| Brad Knowles, Belgacom Skynet NV/SA |o| |o| Systems Architect, News & FTP Admin Rue Col. Bourg, 124 |o| |o| Phone/Fax: +32-2-706.11.11/12.49 B-1140 Brussels |o| |o| http://www.skynet.be Belgium |o| \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/ Unix is like a wigwam -- no Gates, no Windows, and an Apache inside. Unix is very user-friendly. It's just picky who its friends are. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message