Free Tool
SPF Record Checker
Validate your SPF record instantly. Ensure only authorized mail servers can send email on
behalf of your domain — a key step before VMC or CMC certification.
SPF Checker
Validate your Sender Policy Framework DNS record
What This Tool Checks
Our SPF Checker validates all key components of your Sender Policy Framework record
SPF Record Existence
Checks if a valid SPF TXT record exists in your domain’s DNS configuration.
Policy & Mechanism
Validates the SPF mechanisms (ip4, include, a, mx) and enforcement qualifier (-all, ~all).
DNS Lookup Limit
Warns if your SPF record exceeds the 10 DNS lookup limit, which can cause authentication failures.
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Other Free Tools
Run a complete email authentication check for your domain