Security Survey Finds Spammers Embracing Sender Authentication
Sender authentication does little to fight spam.Sender authentication does little to fight spam, according to a study released this week by messaging security firm CipherTrust. The study focused on the deployment and effectiveness of a technology known as the Sender Policy Framework (SPF). SPF allows the holder of an Internet domain to publish a list of IP addresses associated with legitimate e-mail from that domain. CipherTrust said spam messages were three times more likely to pass an SPF check than legitimate mail.
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