From owner-freebsd-questions@FreeBSD.ORG Mon Jun 7 12:57:41 2004 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 DE53816A4CE for ; Mon, 7 Jun 2004 12:57:41 +0000 (GMT) Received: from internet.potentialtech.com (h-66-167-251-6.phlapafg.covad.net [66.167.251.6]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8482243D2D for ; Mon, 7 Jun 2004 12:57:41 +0000 (GMT) (envelope-from wmoran@potentialtech.com) Received: from working.potentialtech.com (pa-plum1c-102.pit.adelphia.net [24.53.179.102]) by internet.potentialtech.com (Postfix) with ESMTP id B0FAA69A71; Mon, 7 Jun 2004 08:57:40 -0400 (EDT) Date: Mon, 7 Jun 2004 08:57:39 -0400 From: Bill Moran To: "Lenny Thompson" Message-Id: <20040607085739.352eba17.wmoran@potentialtech.com> In-Reply-To: <000d01c44bc8$99238200$e5e02c50@Mydomain> References: <000d01c44bc8$99238200$e5e02c50@Mydomain> Organization: Potential Technologies X-Mailer: Sylpheed version 0.9.10 (GTK+ 1.2.10; i386-portbld-freebsd4.9) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit cc: freebsd-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: Mon, 07 Jun 2004 12:57:42 -0000 "Lenny Thompson" wrote: > Hi Nicole > > I wonder if you can help me. I saw your message on the Net regarding ISPs > Blocking SMTP connections from dynamic IP address space. I have a problem now > that didn't exist 6 months where my mail gets returned when emailing a > specific address, the error is ....550: SPAMMER and all my ISP will say it's > the remote end that's blocking. Is this what your talking about, and if yes > how can I check who's doing what? No, it's not what they were talking about. If your ISP were blocking, you wouldn't get any response whatsoever. The fact that the attempt is being rejected with that message means it is, indeed, the remote end. Send your mail through your ISPs relay. If you have problems with your ISPs relay, get a better ISP. I do this on my mail server, and a lot of other people refuse mail from dynamic ips ... this is an attempt to stop the _hundreds_ of spams I was getting each day. Run a real mail server, use your ISP's relay or accept that people are going to block you. Peroid. The internet is not a friendly place. I block dynamic IPs for the same reason I lock my doors at night, because if I don't people abuse my kindness. The fact that it also keeps out friendly people sometimes is something I don't like, but have to live with. -- Bill Moran Potential Technologies http://www.potentialtech.com