Re: [apps-discuss] A greylisting question

Dave CROCKER <dhc@dcrocker.net> Fri, 17 February 2012 23:13 UTC

Return-Path: <dhc@dcrocker.net>
X-Original-To: apps-discuss@ietfa.amsl.com
Delivered-To: apps-discuss@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5EA8821F8540 for <apps-discuss@ietfa.amsl.com>; Fri, 17 Feb 2012 15:13:08 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -6.597
X-Spam-Level:
X-Spam-Status: No, score=-6.597 tagged_above=-999 required=5 tests=[AWL=0.002, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4]
Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id KXnY5cZizvjb for <apps-discuss@ietfa.amsl.com>; Fri, 17 Feb 2012 15:13:06 -0800 (PST)
Received: from sbh17.songbird.com (sbh17.songbird.com [72.52.113.17]) by ietfa.amsl.com (Postfix) with ESMTP id 8B2A121F8532 for <apps-discuss@ietf.org>; Fri, 17 Feb 2012 15:13:06 -0800 (PST)
Received: from [192.168.1.9] (adsl-67-127-58-62.dsl.pltn13.pacbell.net [67.127.58.62]) (authenticated bits=0) by sbh17.songbird.com (8.13.8/8.13.8) with ESMTP id q1HNCxaq025669 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 17 Feb 2012 15:13:05 -0800
Message-ID: <4F3EDEF8.2040908@dcrocker.net>
Date: Fri, 17 Feb 2012 15:12:56 -0800
From: Dave CROCKER <dhc@dcrocker.net>
Organization: Brandenburg InternetWorking
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:10.0.1) Gecko/20120208 Thunderbird/10.0.1
MIME-Version: 1.0
To: John Levine <johnl@taugh.com>
References: <20120217204546.74515.qmail@joyce.lan>
In-Reply-To: <20120217204546.74515.qmail@joyce.lan>
Content-Type: text/plain; charset="ISO-8859-1"; format="flowed"
Content-Transfer-Encoding: 7bit
X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.0 (sbh17.songbird.com [72.52.113.17]); Fri, 17 Feb 2012 15:13:05 -0800 (PST)
Cc: dcrocker@bbiw.net, apps-discuss@ietf.org
Subject: Re: [apps-discuss] A greylisting question
X-BeenThere: apps-discuss@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
Reply-To: dcrocker@bbiw.net
List-Id: General discussion of application-layer protocols <apps-discuss.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/apps-discuss>, <mailto:apps-discuss-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/apps-discuss>
List-Post: <mailto:apps-discuss@ietf.org>
List-Help: <mailto:apps-discuss-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/apps-discuss>, <mailto:apps-discuss-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 17 Feb 2012 23:13:08 -0000

On 2/17/2012 12:45 PM, John Levine wrote:
>> There will, at least, be some differences and possibly many.  But since we have
>> no experience with this stuff in that space, we can't be sure.
>
> Yoo hoo.  I've been greylisting IPv6 for a while.


and therein lies the core problem with sampling error:  there is no way that any 
current greylisting work with v6 has statistical significance relative to 
large-scale use.  one anecdotal reportage out of a tiny percent of the global 
market simply can't represent the (yet to develop) global market.

it /might/ be a bit interesting to hear about what /is/ done, but it can't 
possibly be significant to hear what isn't... yet... done.

d/

-- 

   Dave Crocker
   Brandenburg InternetWorking
   bbiw.net