OpenMailValidator
Email verification tool

A verification studio that deep-scans any address through format, DNS, MX, SMTP and reputation layers, then reads the domain's SPF, DKIM and DMARC posture with blacklist monitoring. Single addresses get instant verdicts and scores; CSV or TXT lists clean thousands of entries with live progress.

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Email verification tool

Project
OpenMailValidator
Visit OpenMailValidator
OpenMailValidator website interface
The OpenMailValidator home — the verification engine under the 7-layer, sub-2-second pitch. Capture: 15 October 2026.

Project overview.

A verification studio that deep-scans any address through format, DNS, MX, SMTP and reputation layers, then reads the domain's SPF, DKIM and DMARC posture with blacklist monitoring. Single addresses get instant verdicts and scores; CSV or TXT lists clean thousands of entries with live progress.

The problems to solve.

Email validity involves more than syntax. Address checks, domain configuration and bulk-list processing need to be understandable within one verification workspace.

What we built instead.

Address validation

Seven-layer deep validation — format, DNS, MX, SMTP, reputation and more — with sub-2-second results.

Domain-health inspection

Domain health check: SPF, DKIM and DMARC verification with blacklist monitoring.

Strict verification options

Catch-all and role-based address detection, with a strict mode for demanding sends.

Bulk-list processing

Bulk verification: upload CSV or TXT files and clean thousands of addresses with live progress.

Project outcomes.

A live verification interface with individual checks, domain-health inspection and bulk upload progress. Descriptions reflect the product's presented features; delivery and accuracy guarantees are not inferred from those features.

Explore the related service

Tools & technologies.

  • React
  • Vite

More work to explore.

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