Smart Email Verifier - Smart Email Verifier will check every e-mail address from a given mailing list and determine if e-mails are still valid. It does three levels of checking: syntax checking, DNS zone checking, and SMTP mail server verification. Smart Email Verifier can save time and money for businesses that send newsletters to their clients, nonprofits that send bulletins to their members, or any person who or business that needs to maintain a clean e-mail contact list.