Why ValidMail exists

Built by people who have already burned domain reputation with a dirty list.

We built ValidMail after paying the cost of bad data ourselves: blocked domains, lost pipeline, and campaigns that never reached inboxes.

Mission

Give growth teams a brutally clear answer about who should receive their emails and make billing fair by default. If certainty is not possible, we refund.

How we operate under the hood

Infrastructure choices focused on speed, resilience, and transparent output quality.

Parallel Rust core

The validation engine is optimized for high throughput and predictable latency at campaign scale.

Adaptive queueing

Background workers and queue controls absorb traffic spikes without breaking active campaigns.

SMTP confidence scoring

Each result combines protocol checks and risk intelligence to minimize false confidence.

Operating values

Transparency first

Every decision is auditable, from raw status to billing impact.

Fair charging

Unknown outcomes are refunded automatically, no tickets needed.

Speed with control

Fast validation should never compromise your ability to review and act safely.

Commercial impact

Everything is designed to protect sender reputation and campaign ROI.

Ready to run cleaner campaigns with less risk?

Create your account and validate your next list with transparent charging.