SPF Record Syntax: The Complete Reference (RFC 7208)

Global Sports Wed, 05 Aug 2026 12:56:51 GMT Moderate confidence — 64/100

Here is a complete record: v=spf1 ip4:192.0.2.0/24 include:_spf.example.com -all That one line authorizes a /24 network and a third party’s servers, then fails everything else.
Every rule governing it lives in RFC 7208, the SPF standard published in April 2014.

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Here is a complete record: v=spf1 ip4:192.0.2.0/24 include:_spf.example.com -all That one line authorizes a /24 network and a third party’s servers, then fails everything else.
Every rule governing it lives in RFC 7208, the SPF standard published in April 2014.

Sources: Dmarcguard