From owner-freebsd-questions@FreeBSD.ORG Mon Apr 30 17:14:16 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id A5BFE16A403 for ; Mon, 30 Apr 2007 17:14:16 +0000 (UTC) (envelope-from prvs=johnl=0633b7d426@iecc.com) Received: from gal.iecc.com (gal.iecc.com [208.31.42.53]) by mx1.freebsd.org (Postfix) with ESMTP id 31F8213C45B for ; Mon, 30 Apr 2007 17:14:15 +0000 (UTC) (envelope-from prvs=johnl=0633b7d426@iecc.com) Received: (qmail 6292 invoked from network); 30 Apr 2007 16:47:34 -0000 Received: from simone-wap.iecc.com (208.31.42.48) by mail1.iecc.com with QMQP; 30 Apr 2007 16:47:34 -0000 Date: 30 Apr 2007 16:47:34 -0000 Message-ID: <20070430164734.87874.qmail@simone.iecc.com> From: John Levine To: freebsd-questions@freebsd.org In-Reply-To: <20070430101939.GA14266@epia-2.farid-hajji.net> Organization: Mime-Version: 1.0 Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 7bit Subject: Re: Greylisting -- Was: Anti Spam X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 30 Apr 2007 17:14:16 -0000 >Cellular operators know that their clients expect speedy >delivery of SMS, including those sent via SMTP. Actually, in my experience SMTP to SMS gateways can have significant delays unrelated to greylisting. Travel agencies like Orbitz send out notices about flight changes and delays via SMTP->SMS and as often as not I only get the notice when I turn my phone back on after the delayed flight has landed. >Have you confirmed with your cellular operator that they don't offer >additional gateways; e.g. based on ICQ, HTTP and whatnot? There are third party services that do this. For example, clickatell.com offers a HTTP POST to SMS gateway quite cheaply, about 10 cents a message at low volumes. Having been dealing with spam for over a decade, I cannot tell you how tired I am of people whining that the world better not implement some effective anti-abuse technique because it would cause them a minor inconvenience due to their particular uncommon setup. Spam sucks. Deal with it. R's, John