Short description of Mailing List Generator by Contentsmartz 2.0: Email ProGen from Contentsmartz searches e-mail addresses directly from well known SMTP Servers. It auto detects the max e-mail verifying session for a single connection limited by current SMTP Server. And, it auto detects DNS server of user's local computer. It's multi-threading implementation allows up to 30 simultaneous email search threads. The normal search speed can go up to 1500 e-mails per minute.