On Mon, 7 Apr 2003 12:44:07 -0400 (EDT), Richard Welty
<rwelty@???> wrote:
>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.
If I were behind a dial-up line, and would receive my e-mail via UUCP,
POP3 or a mail gate, I'd trust the received headers written by the MX.
Which is pretty much what is needed to allow dnsbl checking.
Greetings
Marc
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Marc Haber | " Questions are the | Mailadresse im Header
Karlsruhe, Germany | Beginning of Wisdom " | Fon: *49 721 966 32 15
Nordisch by Nature | Lt. Worf, TNG "Rightful Heir" | Fax: *49 721 966 31 29
