What is SPF (Sender Policy Framework)?
Email authentication protocol that prevents sender address forgery by specifying authorized sending servers. Works alongside DKIM for email authentication. Essential for email deliverability. Used by organizations to protect their domain reputation.
SPF prevents spoofing by specifying authorized email servers in DNS records. It helps receiving servers verify sender authenticity and protect against phishing attempts through email authentication.
Common SPF mistakes include syntax errors, too many DNS lookups, and incomplete server lists. Proper configuration and regular validation ensure effective email authentication.
Implement SPF by creating proper DNS records, including all legitimate sending sources, and testing configuration. Regular monitoring and updates maintain email deliverability.
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