Mailthentic

Verify emails. Land in inbox. Ship fast.

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July 17, 2026 Email Verifier for SaaS Founders: We built Mailthentic to fix broken email lists.

Verify emails. Land in inbox. Ship fast.

We just shipped on Product Hunt, and I figured I'd share what we built and why.

The Problem

Email lists decay. Every month, roughly 2% of your addresses bounce because someone changed jobs, their company folded, they fat-fingered their email on signup, or they just stopped checking that account. You don't notice immediately—your campaign still sends. But those bounces tank your sender reputation, kill your deliverability, and next thing you know, emails that should land in the inbox end up in spam.

We kept watching this happen to customers and realized there was no good solution. Existing tools were either overpriced, required painful integrations, or just slow.

What We Built

Mailthentic is email verification that actually works:

  • Real-time verification through SMTP checks and data validation

  • Bulk list cleaning via CSV upload or API

  • Integrations with Zapier, Brevo, and more

  • Pay as you go or subscription plans

  • Built to be fast and stupid simple

No complicated setup. No vendor lock-in. Just ship it and let it work.

Why Now

A lot of us building SaaS products in India and Pakistan are sending marketing emails, managing customer lists, and running email funnels. We know the pain. Most email tools assume you're a team with an ops person. We built this for founders and small teams who just want their email to work.

What's Next

We're pushing this to Product Hunt today and working on tighter integrations (Zapier is live, Brevo is in progress). Team is small, so we're moving careful but fast.

If you're managing an email list or sending campaigns, give it a try. We're offering credits for Product Hunt users.

Ship fast.

1 Comment

  1. 1

    The interesting opportunity isn't verifying email addresses—it's protecting the sender reputation that every outbound and lifecycle campaign depends on. I'd keep validating whether customers value Mailthentic for cleaner lists or because it consistently preserves deliverability before it becomes an expensive problem. That's a much stronger position.

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Email lists decay. Every month, 2% of addresses become invalid through job changes, domain shutdowns, and typos. Sending to dead addresses tanks deliverability, wastes budget, and hurts sender reputation. Mailthentic exi