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bct on June 20, 2008 | parent | context | favorite | on: The future of email: From smtp to xmpp

How widely are those deployed? Can you get away with ignoring submissions from servers that don't have them set up?

dfranke on June 21, 2008 [–]

No, not even close. SPF is not a spam prevention measure. It's just a way of protecting innocent senders from being impersonated by spammers. DKIM does a better job at the same purpose.

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