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Solopreneur Stack Comparison
MailAuthGuard vs FraudShield
A real-world technical architecture comparison, pricing breakdown, and automation capability showdown between MailAuthGuard and FraudShield.
| Criteria | MailAuthGuard | FraudShield |
|---|---|---|
| Tagline | Automated email deliverability, SPF lookup cap, DKIM, and DMARC auditor API | B2B disposable email detection and MX verification API to stop fake SaaS signups |
| Architecture | ⚡ RFC 7208 10-Lookup Engine | ⚡ 4,000+ Burner Blacklist |
| Status | ✓ Sub-45ms Edge | ✓ Live npm SDK |
| Pricing Model | Freemium | Freemium |
| Starting Price | $0 / $19/mo Pro | $0 / $19/mo Pro |
| Best For | SaaS builders, cold emailers, and platform engineers ensuring 99%+ inbox placement. | Indie hackers protecting free trials, newsletters, and authentication gates from abuse. |
| Direct Link | Launch MailAuthGuard ↗ | Launch FraudShield ↗ |
Why Choose MailAuthGuard?
- ✓ Calculates exact DNS query recursion depth to prevent PermErrors
- ✓ Verifies BIMI and Verified Mark Certificates for inbox brand logos
- ✓ Sub-30ms global edge latency powered by Cloudflare Workers and DoH
Why Choose FraudShield?
- ✓ Sub-35ms global response time
- ✓ Instant drop-in npm client library 'fraudshield-client'
- ✓ Protects Stripe trials and email sender reputation