Mail Machine Pro email marketing software includes everything you need to manage your mailing lists and send professional email campaigns. There are no monthly or per email fees, and Mail Machine Pro installs on your web server for complete control. Key features of Mail Machine Pro include: Multiple Users; Double Opt-In/Out Options; Autoresponders; Personalization; Open/Read Tracking; Batch-mail Sending; Real-Time Message Queue; Multi-language Support; Link Tracking; Bounced E-mail Management. Other features include: send in multi-format including HTML or text formats; Include attachments or multiple attachments in your e-mails; SMTP sending; Scheduling sending of messages; Pause and resume sending; An archive of all messages sent. Email marketing is an affordable, effective way to reach new customers and keep existing customers buying from you. You can start your own newsletter, add a signup form to your site, or send autoresponders.