Check · Interpret · Improve
SPF Analyzer
Check your domain's published SPF record, recursive DNS lookup usage, includes, and common configuration risks. Get clear, actionable insights to keep your email authentication strong.
✓ Fast DNS lookup·✓ No sign-up required·✓ Public DNS review·✓ Free to use
SPF Analysis Workspace
Review the published SPF record, recursive lookup evidence, mechanisms, authorized sources, and potential issues.
SPF summary
Lookup path
3 includesAuthorized sources
Mechanism breakdown
v=spf1ValidSPF record version_spf.google.comValidInclude another SPF policyspf.protection.outlook.comValidInclude another SPF policysendgrid.netValidInclude another SPF policy203.0.113.0/24ValidAllow a specific IPv4 range~allReviewSoftfail unauthorized sendersTop findings
Your SPF record is using 8 of 10 available DNS lookups.
Three include mechanisms are published. Monitor lookup growth.
Softfail allows receivers to treat non-authorized mail less strictly than -all.
The SPF record does not use a redirect modifier.
About This SPF Analyzer
Check your domain’s published SPF record and get clear, actionable insights. Mailvovo reviews the available public DNS evidence, SPF mechanisms, recursive lookup usage, includes, authorized sending sources, and common configuration risks.
What it checks
- Published SPF record (DNS TXT)
- DNS lookup count and limit
- Include and redirect usage
- Authorized sending sources
- Syntax and configuration issues
- Common SPF security risks
Who it’s for
- Domain owners
- IT administrators
- Deliverability teams
- Security teams
- Agencies
- MSPs and resellers
Important to know
- SPF does not prove DMARC alignment
- SPF DNS lookups have a limit of 10
- Overly broad records can be risky
- Results use publicly visible DNS evidence
- DNS changes may take time to propagate
- Use SPF with DKIM and DMARC
How It Works
Get insights from your domain's SPF record in four simple steps.
- 1Enter Domain
Type in your domain name and start the analysis.
- 2We Lookup DNS
Mailvovo retrieves the public SPF evidence.
- 3Analyze & Interpret
Review lookups, mechanisms, includes, and configuration risks.
- 4Get Results
See a clear summary and actionable insights.
Frequently Asked Questions
SPF is a DNS TXT record that defines which sending systems are authorized to send email using a domain.
Yes, but each include can contribute to the recursive DNS lookup budget. Complex include chains should be monitored carefully.
SPF evaluation is limited to 10 DNS-querying mechanisms and modifiers during a check.
Receivers can return an SPF permanent error when SPF processing exceeds the DNS lookup limit.
~all requests a softfail result for senders that did not match an earlier authorized mechanism.
No. SPF configuration alone does not guarantee delivery, inbox placement, sender reputation, or DMARC alignment.
Analyze Another Domain
Check a different domain's SPF record to get fresh DNS and configuration insights.