Criticism
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Some experts take the position that the ISP is the major drawback to proper elimination of spam. The premise is that the regulating agencies have no authority, and the ISPs have no incentive.
- “Authentication cannot stop spam, unless the cop/Reputation Service/Certificate Authority in charge revokes certificates for spamming. If that could happen, then ISPs would also be willing and even enthusiastic about terminating accounts or otherwise controlling (e.g. port block) their spammers. If ISPs would do that, then there would be no spam to need authentication to stop spam and so need for a CA playing cop. As long as ISPs remain unwilling to police their own spamming customers, they would never deal with a CA willing to play cop.
- Authentication involving TLS, SMTP-AUTH, or S/MIME cannot stop backscatter for the same reasons SPF, DKIM, and the rest were, are, and always will be powerless against it. Some of those reasons are why Yahoo still does not sign DKIM on all outgoing mail, Hotmail still publishes whishywashy SPF RRs and neither requires their snakeoil forgery solution on incoming mail.”
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- --Vernon Schryver (Distributed Checksum Clearinghouse operator)
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Read more about this topic: Email Authentication
Famous quotes containing the word criticism:
“Like speaks to like only; labor to labor, philosophy to philosophy, criticism to criticism, poetry to poetry. Literature speaks how much still to the past, how little to the future, how much to the East, how little to the West.”
—Henry David Thoreau (1817–1862)
“Of all the cants which are canted in this canting world—though the cant of hypocrites may be the worst—the cant of criticism is the most tormenting!”
—Laurence Sterne (1713–1768)
“It is ... pathetic to observe the complete lack of imagination on the part of certain employers and men and women of the upper-income levels, equally devoid of experience, equally glib with their criticism ... directed against workers, labor leaders, and other villains and personal devils who are the objects of their dart-throwing. Who doesn’t know the wealthy woman who fulminates against the “idle” workers who just won’t get out and hunt jobs?”
—Mary Barnett Gilson (1877–?)