Matthias
Any DNS BL Listing process where those listings are based on complaints
would create this.
The issue is that if SPAM HEADERS can have the source addresses forged
then the DNS Blocking systems which were listed in those forged headers
need to take that into account. So far as I can tell they dont.
Todd Glassey
Matthias Leisi wrote:
TS Glassey schrieb:
4. effects of DNS caching. if a host is removed from a blacklist it
should arguably be removed from all caches instantly, but DNS isn't
designed to facilitate that.
The use of the term "SHOULD" here has legal implications - since many of
these hosts were put into the BL's by Address Spoofing they were in fact
NOT where the offensive SPAM was coming from and so placing those hosts
there when the real issue is the refusal of the EMAIL Admin to do proper
Header Filtration and Validation creates a direct liability.
I'm sorry to jump in once more. The paragraph above is simply incorrect.
A DNSBL that would be fooled by "address spoofing" would not provide
much value. What do you mean by "address spoofing"? Falsified "From:"
lines?
-- Matthias
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