Dynamic Mail Validator ® is a simple but very powerful tool for anyone to check email address from a mailing list and determine if the emails are valid or not. Our Mail Validator ® (Dynamic Email Validator) is easy to use and reliable. It can verify and clean up mailing list and avoiding Bounce-back / Undelivered emails from your mail box. There is no need to disturb contacts just to verify their addresses. Dynamic Email Validator™ connects directly to their SMTP server to check them without sending the email.