From owner-freebsd-questions@FreeBSD.ORG Thu Aug 7 07:01:54 2003 Return-Path: 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 87EB937B401 for ; Thu, 7 Aug 2003 07:01:54 -0700 (PDT) Received: from galilee.polands.org (CPE-24-208-57-240.new.rr.com [24.208.57.240]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2AB1943FAF for ; Thu, 7 Aug 2003 07:01:53 -0700 (PDT) (envelope-from djp@polands.org) Received: from sheba.polands.org (sheba.polands.org [172.16.1.33]) by galilee.polands.org (8.12.9/8.12.9) with ESMTP id h77E0VNP039378; Thu, 7 Aug 2003 09:00:31 -0500 (CDT) (envelope-from djp@polands.org) Received: from sheba.polands.org (localhost [127.0.0.1]) by sheba.polands.org (8.12.9/8.12.9) with ESMTP id h77E0Vwd001029; Thu, 7 Aug 2003 09:00:31 -0500 (CDT) (envelope-from djp@sheba.polands.org) Received: (from djp@localhost) by sheba.polands.org (8.12.9/8.12.9/Submit) id h77E0ULu001028; Thu, 7 Aug 2003 09:00:30 -0500 (CDT) Date: Thu, 7 Aug 2003 09:00:30 -0500 From: Doug Poland To: "Roger 'Rocky' Vetterberg" Message-ID: <20030807140030.GA990@polands.org> References: <25533.63.104.35.130.1060186797.squirrel@email.polands.org> <3F3253B3.3080902@401.cx> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3F3253B3.3080902@401.cx> User-Agent: Mutt/1.5.4i cc: questions@freebsd.org Subject: Re: ISPs blocking SMTP connections from dynamic IP address space X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 07 Aug 2003 14:01:54 -0000 On Thu, Aug 07, 2003 at 03:27:15PM +0200, Roger 'Rocky' Vetterberg wrote: > Doug Poland wrote: > > >Within the last two months both AOL and Time Warner Road Runner > >have implemented port 25 blocks from hosts with IP addresses in the > >"dynamic address space". Time Warner claims other major ISPs > >are/will be implementing the same policy. > > > > > >A little help here? > > > > > Sorry, but I cant help you here, I fully agree with AOL and the big > guys. We have to take some serious action against spam, > I hate spam as much as the next guy. But > piss a lot of people off, but as they say: you cant make an omelett > without breaking some eggs. I say block the dynamic address space, > This is where I disagree. What is the "dynamic address space" anyway? DSL, dial-up, and cable modem providers IP ranges? This separates the world into the "haves" and "havenots" based on static($$$) vs. dynamic IP range. So the big ISPs get to say, "We will not accept a connection from a host, on port 25, unless the IP originates from an IP range we have decided is acceptable." What happens when the ISPs decide, "We will not accept a connection from a host unless the MTA is on the approved list, i.e., Microsoft Exchange" > block everything that lacks proper reverse dns > I have proper reverse DNS. I don't get to connect because of this "dynamic IP range" issue. If one has proper reverse dns, should one be blocked because the host IP comes from a "dynamic address space"? Why? -- Regards, Doug