Twilio Email Validation API

Twilio's email validation API runs on SendGrid's infrastructure, giving you production-grade verification at scale. It checks syntax, verifies MX records, and detects disposable mailbox providers and known spam trap addresses in real-time or batch mode.

Built for developers integrating validation into signup flows, this works best if you're already using Twilio or SendGrid services. Pricing scales with volume, and the API integrates cleanly into Node, Python, and other platforms.