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Mail Security Tools

Free email authentication toolkit for SPF, DKIM, and DMARC checks

Free toolkit; paid options availableFreemium

Mail Security Tools website

About

Mail Security Tools helps operators check SPF, DKIM, DMARC and related DNS records so domains are harder to spoof. Clear pass/fail views for MSPs, sysadmins, and founders.

Features

  • SPF/DKIM/DMARC checks
  • DNS authentication view
  • Practical fix guidance

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