Please just throw fish at me if this has already been proposed, but I was
thinking today about what aspects of spamming a spammer finds hard to
change.
Changing names and IP addresses are easy, but I imagine that finding a
DNS server that will be authoratitive for them is a tougher
challenge.
So,
if one was to develop a list of the name servers that are authoratative for spam
domains, then when a spammer changes but keeps the same name server, we will
know and squash them!
I'm
imagining this in a set up that is engineered around trust (unknown sender, untrusted NS = mid level sensitivity; unknown sender; bad NS = high
sensitivity)
I
imagine the checks could be done using perl's DNS lookup
module?
R
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