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SPF Record Checker

Instantly look up and validate your domain's SPF record. Find missing or misconfigured SPF entries that cause email rejection.

Check SPF Record

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  • Automated inbox warming for your domains
  • SPF, DKIM & DMARC monitoring
  • Real-time deliverability alerts
  • Multi-provider support — Gmail, Outlook, SES
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What is an SPF record?

SPF (Sender Policy Framework) is a DNS TXT record that lists all the mail servers authorized to send email from your domain. When a receiving server gets an email claiming to be from your domain, it checks your SPF record to verify the sending server is on the approved list.

Common SPF record issues

  • Missing SPF record — Many ISPs will soft-fail or reject emails with no SPF record.
  • Too many DNS lookups — SPF is limited to 10 DNS lookups. Exceeding this causes a "permerror".
  • Weak enforcement (~all vs -all) — Using "soft fail" (~all) instead of "hard fail" (-all) reduces protection.
  • Missing mail servers — If you use a third-party email service (like SendGrid or Mailchimp), their servers need to be included in your SPF record.