Dynamic Email Validator - This tool verifies and cleans up your mailing list by checking every e-mail address from it and determining whether e-mails are valid. Dynamic Email Validator connects directly to contacts' SMTP servers to check them without sending the e-mail. Dynamic Email Validator helps to avoid ISP's mail servers blocking or barring your e-mail domain because of you repeatedly sending emails to non-existing account holders. Dynamic Email Validator is a multi-threaded program.