On Feb 15, 2007, at 12:07 PM, Stephanie Erin Daugherty wrote:
A standard "listed" test entry and standard "not listed" test entry
are a good way to test that. Standard practice right now usually
uses 2.0.0.127.dnsbl.example.com or some variant as the "always
listed" address - adding a requirement for a "never listed" address
would be a good way to implement an additional check to make sure
the DNSBL is still active, and hopefully that it's not listing the
world. I'm not sure that we have a standard convention for a "never
listed" test address (one that should always return a whitelist
record or NXDOMAIN depending on the type of list.)
1.0.0.127.
There. We have an always listed and a never listed address that are
already done by the vast majority of blacklists[1]. All we need is
client side support for those two checks and we're done.
Cheers,
Steve
[1] OK, I run two blacklists and neither of them supports both of
those records, but they're kinda special cases...
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