Mass Mailer gives you the features you need to quickly create and maintain a successful Internet marketing campaign. Mass Mailer is designed to broadcast text or html emails, email tracking, sending speed control, built in SMTP server. Free Tech Support. Mass Mailer helps you create a customer or client database in a matter of minutes, simply by entering key information into an easy-to-use contact form. If you already have an existing database, you can import it into Mass Mailer in a few easy steps, using any standard text-delimited format. Mass Mailer also works with multiple servers and multiple users, ensuring your sales and project teams are able to share information and contact lists.