Mail Them Pro is a multi-threaded mass mailer and mailing lists management tool. It comes with a built-in SMTP server and mail merge functionality, allowing you to personalize the newsletter with the receivers name, email or any other data that is included in your list fields. You can use it to send plain text or HTML messages wit optional attachments. Mail Them Pro also includes subscribe and unsubscribe management features, allowing you to automatically process new subscribers or removal requests without the need for any web site scripting. Additional features include logging, database support (SQL Server, MySQL, Access, Excel), duplicate removal, address book import and more.