Email Validation
Real-time verification API
99.9% Delivery Rate Accuracy
Disposable Email Detection
Domain & SMTP Validation
Test emails with
confidence & speed
Catch broken email flows before your users do. MailAssert gives you a real inbox to test against — no mail traps, no guessing.
Free to start — no credit card needed
Real inbox, real delivery — powered by Cloudflare
Simple REST API — integrate in minutes