Smart Email Verifier will check every email address from a given mailing list and determine if e-mails are still valid. It does 3 levels of checking; first it will check the e-mail syntax, next it will verify the existence of the SMTP mail server and finally e-mail box on the server. Smart Email Verifier can save time and money for businesses who send newsletters to their clients or any person that needs to maintain a clean e-mail address list.