mr-email-checkerbuild dossier
Production-grade email validation & verification for Node.js with zero runtime dependencies. Provides syntax checking, MX lookups, SMTP mailbox probing, catch-all detection, disposable email checks, and typo detection.
Zero Dependencies
Lightweight and secure with zero external dependencies.
Deep Verification
DNS MX lookups and live SMTP probes without sending any emails.
Typo Detection
Catches real typos like gmial.com using Damerau-Levenshtein distance.
Validates RFC subsets and performs real MX lookups with A/AAAA implicit-MX fallback.
Live mailbox existence check with safe connection handling and catch-all detection.
Detects disposable, free, and role-based accounts against massive community lists.
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