DMARC is gaining wider adoption in the IT industry, including from Yahoo and Google. The protocol is essentially designed to streamline the process of email spoofing detection, but still not everyone is using it.
Detectify’s research found that only 42 percent of the top 500 sites in the world use DMARC.
Although DMARC is "far from foolproof," the system has been effective in preventing email-based attacks, Levine said.
For instance, phishing attacks against Paypal users may have dropped as a result of email providers adopting DMARC, security firm Kaspersky Lab said in 2015.
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