Customers Care 

Customers Care is an Advanced customer management system and a Powerful Marketing tool.At once, it provides you a lot of possibilites and manages/tracks your users/customers, manage mailing lists/ newsletters in a very flexible way.
mailing list software newsletter software email mailing list order management newsletter writing create a newsletter mailing list manager write a newsletter web site visitor tracking create newsletter mailing list management

RegKeeper- e-Sales Tracking Software 

RegKeeper is a straightforward, inexpensive e-sales tracking solution packed with handy features like an overstuffed sandwich. Affiliate tracking, chargebacks and refunds black list, e-mail processing, order import, reporting, sales history.
e-sales order processing e-commerce