jdow wrote:
> ===8<---
> Return-Path: <[EMAIL PROTECTED]>
> Received: from smtp.earthlink.net [209.86.93.205]
> by localhost with POP3 (fetchmail-6.2.5.5)
> for [EMAIL PROTECTED] (single-drop); Mon, 13 Mar 2006 05:36:39
> -0800 (PST)
> Received: from amazon.com ([80.33.31.58])
> by mx-pigeons.atl.sa.earthlink.net (EarthLink SMTP Server) with SMTP id
> 1fiNda4KB3Nl34g0
> for <[EMAIL PROTECTED]>; Mon, 13 Mar 2006 08:35:48 -0500 (EST)
> From: LARISA SOSNITSKAYA <[EMAIL PROTECTED]>
> To: jdow <[EMAIL PROTECTED]>
> Subject: PLEASE RESPOND ASAP
> X-Priority: 3
> X-MSMail-Priority: Normal
> Reply-To: LARISA SOSNITSKAYA <[EMAIL PROTECTED]>
> mime-version: 1.0
> content-type: multipart/mixed;
> boundary="qzsoft_directmail_seperator"
> Message-Id: <[EMAIL PROTECTED]>
> Date: Mon, 13 Mar 2006 08:35:48 -0500 (EST)
> X-ELNK-AV: 0
> X-ELNK-Info: sbv=0; sbrc=.0; sbf=00; sbw=000;
> X-Spam-Virus: No
> ===8<---
> 
> Now, just why a FORGED amazon.com Received header should cause this set of
> rule hits I don't know:

>From the looks of it, earthlink is claiming that 80.33.31.58 RDNS'ed as
amazon.com. So apparently this guy managed to forge his RDNS, or earthlink's
header format is weird.

This:

 from amazon.com ([80.33.31.58])

Matches the typical behavior of postgress when the RDNS matches the HELO.. I'm
not sure if Earthlink's server does the same.


This does also outline reason why whitelist_from_spf is better than
whitelist_from_rcvd.. Forging RDNS is difficult, but if your ISP gives you
sub-delegation of your RDNS then you can change it to be whatever you want.





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