Email List Validator – Free - Validate your email list online (DNS/MX/SMTP checks + more)

Hi hunters! 👋

I built this email list validator and would love to share it with you.

Upload a CSV with the email addresses you want to validate, and it performs checks:
- Syntax – Confirms correct proper email format (name@domain).
- Domain & DNS – Verifies the domain exists and resolves.
- MX records – Verifies the domain can receive mail.
- SMTP handshake (optional) – Checks the mail server accepts the recipient (no message sent).
- Disposable domains – Flags temporary inbox providers that can hurt deliverability lists.
- Common typos – Catches mistakes and suggests fixes (e.g., gmial.com → gmail.com).

I built it because most validators hide behind signups or credits. I wanted a no-signup, in-browser checker you can use fast.

It’s free and online.

Also, it's super-simple to use and actionable – it gives you clear reasons to fix potential issues quickly.

Let me know what you think! And if you have any ideas or questions, please do tell :)

Thank you!
Kristyna