Mass eMailer - Version 2.1 Mass eMailer 2.1 is easy to use but powerful program for sending bulk emails to multiple recipients. It has internal SMTP server and internal DNS client, so you can send emails without using your ISP mail servers. It supports multiple attachments and html format of the messages. You can save the processed emails for better diagnostics. Contact your customers and employees or start the email marketing campaign that will sell your products. It's free to try.