Sender Policy Framework

Sender Policy Framework (SPF) is an email validation system designed to prevent email spam by detecting email spoofing, a common vulnerability, by verifying sender IP addresses. SPF allows administrators to specify which hosts are allowed to send mail from a given domain by creating a specific TXT record in the Domain Name System (DNS). Mail exchangers use the DNS to check that mail from a given domain is being sent by a host sanctioned by that domain's administrators.Sender Policy Framework is defined in IETF publication RFC 7208.
Posts about Sender Policy Framework
  • Five Deadly Email Platform Migration Mistakes to Avoid

    …-in mechanism to verify a sender's identity. So, theoretically, anyone can send a message using, say, the email address That presents a huge problem for brands, financial institutions, and politicians! To avoid that problem, email specialists developed two authentication methods to protect and verify sender identity: Sender Policy…

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