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In a presentation entitled “So you’ve got authentication now. Yippee,” Allman says that while DKIM isn’t a cure-all to the
spam and phishing problem, it presents an effective way for the signer to assert they really did process the message, and
to hold them responsible for it.
But DKIM and other authentication approaches won’t work in a vacuum, he says.
“We need to use authentication as input to a larger system; it’s one part of a big toolbox,” Allman says. “If something is
authenticated that doesn’t necessarily mean that it’s good.”
While phishing has become a top concern in the spam-fighting community, the battle against simply annoying e-mail is far from
over, and a number of papers presented at the conference focused on new ways to identify and block spam. Among these were
a proposal to improve Bayesian filter accuracy, a system for generating temporary e-mail addresses so that a person’s preferred
address doesn’t have to be given out, spam filters based on adaptive neural networks, a new message-verification platform.
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