Free SPF Checker

Check if your domain has a valid SPF record. SPF prevents spammers from sending fake emails that appear to come from your domain.

What is SPF?

SPF (Sender Policy Framework) is an email authentication method that specifies which mail servers are authorized to send email on behalf of your domain. It's published as a TXT record in your DNS and is one of the essential email authentication protocols.

Why SPF Matters

Stop email spoofing - Only authorized servers can send email as your domain
Improve deliverability - Receiving servers trust authenticated emails
Required for DMARC - SPF must pass for DMARC to be effective
Protect your reputation - Prevent your domain from being blacklisted

Common SPF Mistakes

No SPF record - Anyone can send email as your domain
Using +all or ?all - Too permissive, no real protection
Multiple SPF records - Causes SPF failures, emails get rejected
Missing includes - Forgetting to add all email service providers