SPF Checker

Lookup and validate an SPF record. See parsed mechanisms, includes, and issues.

About SPF Checker

Sender Policy Framework (SPF) helps mail servers verify that messages from your domain are sent from IPs you authorize. This tool fetches your domain's SPF TXT record and parses its mechanisms and includes.

Common mechanisms include a, mx, ip4:, ip6:, and include:. The final policy is indicated by -all (fail), ~all (softfail), ?all (neutral), or +all (allow all – not recommended).

Tip: Keep your record under 255 chars per string and 10 DNS lookups. If you use multiple services, consolidate with include: statements and monitor TTLs for faster updates.

Illustration for SPF checker