@tuanleanh

Tuan Le Anh

@tuanleanhHo Chi Minh City, VietnamJoined October 2026

Full Stack Developer · Next.js, NestJS, Go

About

Full stack developer in Vietnam, 4+ years of TypeScript. I build SaaS products end to end: Next.js on the front, NestJS or Go behind it. I write about email delivery, multi-tenant systems and AI inside products. Portfolio: https://tuanleanh.com

Available for

Freelance and remote full stack projects. Contact: https://tuanleanh.com/#contact

Tuan Le Anh's blogs

Tuan Le Anhtuanleanh.hashnode.dev2 posts

Email Bounce Handling: Verify, Classify, Suppress Safely

An email platform can get bounces wrong in two directions. Keep mailing addresses that do not exist, and the bounce rate climbs until mailbox providers start junking everything the sender sends. Suppr

3Oct 14 · 6 min readtuanleanh.hashnode.dev

Why Email Verification Gets It Wrong: 5 False Verdicts

An email verifier answers one question: does this mailbox exist? It asks the mail server directly, the way a sender would, and stops before sending anything. The server's reply looks like a verdict. V

1Oct 14 · 5 min readtuanleanh.hashnode.dev

Tuan Le Anh

About

Available for

Tuan Le Anh's blogs

Email Bounce Handling: Verify, Classify, Suppress Safely

Why Email Verification Gets It Wrong: 5 False Verdicts

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Tuan Le Anh

About

Available for

Tuan Le Anh's blogs

Email Bounce Handling: Verify, Classify, Suppress Safely

Why Email Verification Gets It Wrong: 5 False Verdicts