What business problem does it solve?
Now with this software you will be able to send customised email newsletter to all your clients, without paying to anything to anyone, and also you can configure any SMTP you want, so no fear of losing copy of valuable email address.
You can add edit contact, capture lead, user information , set follow-up date, reference etc.
You can use the software for free for sending newsletter, please tell us your requirement , so we can improve the functionality. [coming soon]