Will validate mailing lists, to find the valid addresses.To achieve this goal, the program will connect with the mail exchanger for the domain of a given e-mail and then it will simulate sending an e-mail message to the recipient.It does not actually send the message, because the program resets the connection after verifying that the username is valid. The program is multithreaded which willguarantee a high speed in the verification process. To start the verification process first import a mailing list usingwith the command Import Addresses. Then you can start the verification . You can pause and resume active tasks later and save the results in the program *.mlv files.