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MailTester Ninja vs DMARCguard

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

MailTester Ninja compared with DMARCguard
DetailMailTester Ninja logo MailTester NinjaDMARCguard logo DMARCguard
What it doesEmail verification and finder tool that processes data in real time without storage DMARC monitoring and enforcement platform across 9 email authentication protocols
StageNot given Startup
FoundedNot given 2025
Based inNot given EE
Pricing modelFreemium Freemium
PricingFree version verifies one email at a time with no signup. Pro plan: 100,000 emails per day. Ultimate plan: 200,000 emails per day. Plan quantities can be multiplied at checkout; for example Ultimate x5 gives 1,000,000 emails per day. Bitcoin payment accepted via Pay with crypto option. Free plan: 2 domains, 7 protocols. Pro: $29/month for 2 domains, then $15/domain/month (3-10 domains), $10/domain/month (11+ domains). Founding members: $14.50/month for 2 domains, then $7.50/domain/month (3-10), $5/domain/month (11+), locked 24 months with permanent 15% alumni discount. Hosted DNS
Key features
  • Real-time email verification checking DNS records and SMTP
  • Email finder to discover valid business contact addresses
  • Detects invalid, disposable and catch-all addresses
  • Anti-spam detection and deliverability analysis
  • Syntax validation for email format
  • RESTful API integration for applications
  • Analytics and reporting of verification results
  • CSV export and spreadsheet integration
  • No data storage or retention of verified emails
  • GDPR compliant privacy-first verification
  • Monitor 9 email authentication protocols including DMARC, SPF, DKIM, BIMI, MTA-STS, TLS-RPT, ARC, DANE, and ARF
  • Identify 170+ named senders automatically instead of showing raw IP addresses
  • Step-by-step remediation guidance with service-specific fixes for 28+ email services
  • Compliance scoring with A-F grades and exportable PDF audit reports
  • DMARC policy enforcement workflow from p=none through p=quarantine to p=reject
  • Look-alike domain scanner to detect typosquatting and phishing domains
  • Anomaly detection with alerts via email, Slack, Teams, or webhooks
  • REST API access and 17 MCP tools for AI-powered monitoring
  • PCI DSS v4.0.1 and NIS2 compliance evidence generation
What makes it different
  • Never stores verified email addresses on servers, ensuring full GDPR compliance
  • Achieves bounce rate of less than 1% with verified emails
  • Uses deep technical analysis beyond surface-level email checks
  • No signup required, free access with no personal data collection
  • Over ten years of industry experience in email verification and deliverability
  • 7 core email authentication protocols free; all 9 from Pro tier, while competitors gate basic protocols behind premium plans
  • Actionable step-by-step remediation guidance instead of monitoring dashboards alone
  • Transparent per-domain pricing published on the website with no hidden quote-based pricing
  • RFC-strict implementations with no shortcuts to standards compliance
  • Bootstrapped company with no compromise on free tier or data monetization
Community votes00
DR (Domain Rating by Ahrefs)39 +2 (up) since last check28 +1 (up) since last check
Trust Flow (Majestic)149
Citation Flow (Majestic)3236
Referring domains (Majestic)207303

5 details filled in for both companies.

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