Magictools SPF Record Checker
SPF Record Checker
Validate your SPF record, find hidden DNS lookups, expand every include, and see exactly what needs fixing.
- RFC 7208
- Lookup limits
- Include tree
- DMARC cross-check
Enter a domain to inspect SPF, includes, and lookup limits.
How it works
Three simple steps. No account or installation required.
- Step 1
Enter your domain
Enter a public domain name.
- Step 2
Review SPF diagnostics
Review SPF status, lookup paths, and dependency tree.
- Step 3
Copy fixes or JSON
Test sender IPs, copy fixes, or export JSON.
More about this tool
SPF Record Checker inspects public DNS to validate SPF records using RFC 7208, including recursive include and redirect analysis, path-aware DNS lookup-limit diagnostics, void lookup tracking, authorized network aggregation, sender/IP evaluation, and DMARC cross-check.
Frequently asked questions
What is an SPF record?
An SPF record is a DNS TXT record that tells receiving mail systems which servers are authorized to send email using a domain's SPF identity.
What is the SPF 10 DNS lookup limit?
SPF permits at most 10 DNS-query-causing terms during one evaluation path. Exceeding this limit can cause PermError.
Does ip4 count as an SPF DNS lookup?
No. ip4 and ip6 mechanisms do not consume SPF DNS lookups.
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Email authentication · Free SPF checks