🚀 Configurable framework agnostic plain Ruby 📨 email validator/verifier. Verify email via Regex, DNS, SMTP and even more. Be sure that email address valid and exists.

🚀 Configurable Golang 📨 email validator/verifier. Verify email via Regex, DNS, SMTP and even more. Be sure that email address valid and exists.

High-performance DNS validator using template-based verification

Certbot external DNS, HTTP, TLSSNI domain validation plugin with JSON output and scriptable hooks, with Dehydrated compatibility

Powerful TypeScript SDK for detecting disposable email addresses with real-time synchronization, advanced DNS validation (MX, SPF, DMARC), intelligent caching, and high-performance email validation. Features 119K+ domains from 15+ sources with automatic updates, pattern matching, subdomain checking, and enterprise-grade validation capabilities

Validate email address with Mailgun's validation service (Syntax checks, DNS validation, MX validation)

A NodeJS component used for DNS validation.

Disposable Email Domain validator library for Java

A high-performance and secure REST/GraphQL API built with Rust, MongoDB & Redis for cleaning email subscriber lists. Maintains sender reputation by validating, deduplicating, and pruning inactive emails.

ACME (Let's Encrypt) client for issuing SSL/TLS certificate through DNS validation

Multi-threaded DNS resolvers fetch and validation

Used to create a DNS verified ACM certificate by R53 Zone name

ZoneVision API for Node.js (unofficial)

DNSSEC validation tool for Windows, Linux, and macOS