Email Verifier (Upgraded Simple Version)

Client-side verifier for Cloudflare Pages. Checks syntax, MX (mail server) via Cloudflare DNS, and basic disposable email domains. Table & textarea automatically show valid only. CSV export still includes all results.

Drag & drop a CSV file here, or use the file picker above.

Notes: Disposable detection uses a sample list in this file. For very large lists (50k–100k temp domains), you can extend the disposableDomains set in the script.