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Dev.to
5/9/2026
One API Call to Audit Any Domain's Email Security

One API Call to Audit Any Domain's Email Security

Short summary

MailSec is an API that audits domain email security in a single call, checking SPF, DMARC, DKIM, DNSSEC, and MX records with F-A grades. It replaces manual DNS queries, providing READY/CAUTION/BLOCKED verdicts for deliverability. Use it for trial-signup validation, vendor risk assessment, and continuous monitoring of domain misconfigurations and blacklists.

  • •Checks 5 email security components (SPF, DMARC, DKIM, DNSSEC, MX) in one API call
  • •Scores domains F-A with explicit READY/CAUTION/BLOCKED verdict on deliverability
  • •Designed for trial validation, vendor assessment, and proactive domain health monitoring

Generated with AI, which can make mistakes.

#product-launch#industry-adoption
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