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3 articles
Email authentication explained for beginners
Email was designed in an era when everyone on the network trusted everyone else, so it shipped with no built-in way to prove who actually sent a message.
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Why your domain can be spoofed, and how to stop it
If you own a domain and have never published a DMARC record, anyone on the internet can send email that appears to come from you.
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The five DNS records that protect your email
Email was designed in an era of trust. The original protocol, SMTP, lets any server on the internet claim to send mail as anyone.
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