SPF Checker Tool

SPF (Sender Policy Framework) helps receiving mail servers determine whether an email is authorized to send on behalf of your domain. It works by publishing a DNS TXT record that lists the IP addresses and services allowed to send mail.

This SPF checker looks up your domain's SPF record, parses each mechanism, and flags structural or policy issues that can impact delivery. It helps you confirm that your sending sources are properly authorized and that your record is not overly permissive or misconfigured.