Email Validator checks deliverability of email addresses. It does so by first performing a DNS query on the domain name of each email address in order to determine the address of the mail server servicing that domain. Once the mail server is found, a connection is made in the same way as your ISP's mail server would make a connection. Email validator will then determine if each email address is valid and deliverable.

Ссылка: http://www.byte..nloads/email_validator_1.0.0.exe