mailchecker
Cross-language temporary (disposable/throwaway) email detection library. Covers hundreds fake email providers.
email-validator-node
High-performance TypeScript email validator with format validation, MX record validation, and disposable email detection. Zero runtime dependencies.
verifalia
Verifalia email verification library for JavaScript: verify email addresses in real-time and check whether they are deliverable, invalid, or otherwise risky.
verifalia-widget
A lightweight JavaScript widget with zero dependencies that performs real-time email address validation using the Verifalia email verification service. This widget integrates seamlessly with any web form to swiftly identify and eliminate invalid, undelive
