* Hadmut Danisch:
Two years ago Microsoft made exactly the same proposal (computer-
_and_ human-solvable puzzles) and widely announced that the problem
with spam would be gone within two years.
Now, two years later, we all know that they failed.
I'm being told that the spam problem has been solved. Nowadays, you
can subscribe to extremely accurate filtering technology.
The remaining problem is how you can route legitimate spam past the
spam filters. One solution using SPF looks like this:
email.bn.com. IN TXT "v=spf1 mx ptr include:dartmail.net -all"
(Dartmail is a legitimate bulk mailer, if such a thing exists at all.)
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