Our SPF Lookup Tool is a free online utility that lets you check and analyze the Sender Policy Framework (SPF) records of any domain.

SPF is an essential email authentication protocol designed to protect domains from email spoofing, phishing attempts, and other fraudulent activities. By defining which mail servers are authorized to send messages on behalf of your domain, SPF helps prevent attackers from forging your email address. When implemented correctly, SPF not only strengthens your domain’s email security but also improves deliverability—ensuring that legitimate messages reach inboxes instead of being flagged as spam.

Key Features of the SPF Lookup Tool

  • SPF Record Verification
    Instantly retrieves and displays the SPF record for any domain, showing all authorized mail servers. This helps confirm that your SPF record is correctly configured to allow only legitimate servers to send emails on your behalf.
  • SPF Record Status Check
    Validates whether the SPF record is properly formatted and compliant with standards. If issues are found, the tool highlights them so you can fix misconfigurations before they impact email delivery.
  • DNS Lookup Count
    SPF records are limited to 10 DNS lookups. The tool automatically calculates and displays your current lookup count, ensuring you stay within the safe limit to avoid SPF failures.
  • Authorized IPs and Includes
    Provides a full breakdown of all IP addresses, ranges, and include mechanisms defined in the SPF record. This transparency helps identify potential errors or unauthorized entries.
    • IPv4 / IPv6 Addresses: Lists of approved individual IPs and ranges.
    • Include Mechanisms: References to other domains’ SPF records for simplified management across complex infrastructures.

Benefits of Using the SPF Lookup Tool

  • Better Email Deliverability
    Ensures that correctly configured SPF records reduce the chances of your emails being flagged as spam or rejected.
  • Stronger Email Security
    Protects your domain from spoofing and phishing attempts, safeguarding your brand reputation and customer trust.
  • Simple, User-Friendly Interface
    Designed for both technical and non-technical users, making it quick and easy to analyze and optimize SPF records.

With our SPF Lookup Tool, you can confidently assess, validate, and optimize your SPF setup—ensuring reliable email delivery and robust protection against email-based threats.