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shield DNS Validator

SPF Record Checker

Verify SPF (Sender Policy Framework) records to prevent email spoofing and improve deliverability.

What is SPF?

SPF (Sender Policy Framework) is an email authentication protocol that helps prevent email spoofing. It allows domain owners to specify which mail servers are authorized to send email on behalf of their domain.

check_circle Benefits

  • Prevents email spoofing
  • Improves deliverability
  • Protects brand reputation
  • Reduces spam complaints

code SPF Syntax

v=spf1 include:_spf.google.com ~all

Example SPF record for Google Workspace

SPF Mechanisms Explained

include:

Include another domain's SPF

a

Allow domain's A record IP

mx

Allow domain's MX servers

ip4:

Allow specific IPv4 address

ip6:

Allow specific IPv6 address

~all / -all

Softfail / Hardfail for others

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