SPF
Quick facts
Purpose
SPF
SPF is one of the DNS resource record (RR) types defined by RFC 7208.
Example
example.com. 3600 IN SPF "v=spf1 -all"
Related record types
Common uses
Frequently asked questions
Authorize email senders, Spam prevention
In the DNS management panel of your registrar or DNS provider (for example Cloudflare or Route53).
Sources & standards
Updated 2026-09-13
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