Trumailo
2026Trumailo validates an email address before you ever send to it. We engineered the real-time verification API — eight signals per address, sub-10ms cached responses — plus the dashboard and self-host stack that keep bounce rates near zero.
- Industry
- Email Infrastructure · SaaS
- Service used
- Custom Software
- Challenge
- Verify email deliverability in real time — eight signals per address — without slowing the send.
- Timeline
- 10 weeks
Technology stack
GoNext.jsPostgreSQLRedisNATSDocker
What we shipped
001.Eight-signal engine: syntax, MX, SMTP, catch-all & more
002.Sub-10ms cached API with async deep verification
003.SHA-256 hashing — addresses never stored in the clear
004.Real-time dashboard and usage analytics
005.One-command self-host via Docker Compose
006.Drop-in integrations for Resend, Postmark, SES & Mailgun

Sub-10ms verification sounded impossible. They delivered it — and the self-host option sealed the deal for us.
Rutvik PanchalFounder, Trumailo
<10msResponse time
8Verification signals
5+ESP integrations