Re: [Exim] rbl-check for forwarded spam

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Author: Richard Welty
Date:  
To: exim-users
Subject: Re: [Exim] rbl-check for forwarded spam
On Mon, 7 Apr 2003 12:28:18 -0400 Ken Olum <kdo@???> wrote:

> I'm thinking of trying to use Bjarni Einarsson's rbl-check system
> (http://bre.klaki.net/programs/spam/rbl-check.pl.txt) that checks for
> blacklisted sites in Received: headers. Since it's in perl, I thought
> I might be able to run it with the embedded perl facility.


trusting received: headers is pretty risky. the received headers in much
(most?) spam these days include a lot of forgery. about the only one you
can really trust is the one your own MTA generates.

richard
--
Richard Welty                                         rwelty@???
Averill Park Networking                                         518-573-7592
              Unix, Linux, IP Network Engineering, Security