Check SPF, DKIM & DMARC in 30 seconds
Free email deliverability scan. No login. No signup.
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Foundational email security checks
These signals affect inbox placement over time
Step-by-step DNS fixes, alerts, and monitoring are available after free signup.
Most deliverability issues are caused by DNS authentication, not content.
Sender not authorized in SPF record
Email signature not verified
Policy too weak or misconfigured
IP flagged by spam databases
Mail server unreachable or insecure
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SPF, DKIM, DMARC, MX, TLS & blacklists
Clear pass/fail results with fixes
See exactly what's broken and what to fix.