Validate SPF records for email authentication
Enter a domain to check its SPF record
SPF Record Checker is a powerful free online tool that checks and validates SPF (Sender Policy Framework) records for any domain. Parse mechanisms, detect misconfigurations, and ensure your email authentication is properly set up.
The SPF Record Checker is a free online tool available on AllToolHub that fetches and validates SPF records for any domain. SPF is an email authentication protocol that helps prevent email spoofing by specifying which mail servers are authorized to send email on behalf of a domain.
Enter a domain name and click Check SPF. The tool queries TXT records via Google DNS API, filters for records starting with "v=spf1", then parses all mechanisms (include, ip4, ip6, a, mx, all) and modifiers (redirect, exp). It also checks for common misconfigurations like +all (too permissive) or exceeding the 10 DNS lookup limit.
SPF (Sender Policy Framework) is an email authentication protocol that allows domain owners to specify which mail servers are authorized to send email on behalf of their domain. It helps prevent email spoofing.
It fetches and validates SPF records for any domain, parsing all mechanisms and checking for common misconfigurations like overly permissive policies or too many DNS lookups.
The +all mechanism means any server can send email for your domain, which is extremely permissive and a security risk. You should use ~all (softfail) or -all (hard fail) instead.
Yes, the SPF Record Checker is 100% free with no signup required.
Yes, it is fully responsive and works on all devices.