Execula Mail Chimp plugin is a tool that can be integrated with MailChimp. The plugin fetches email lists from a website database or nopCommerce store's data (including stores, customers, products, carts, orders, etc) and sends them to the MailChimp where you can bifurcate the audience and send them newsletters or important stuff to boost your sales. You can even download the CSV or excel file or even export/import this useful data as per your need from MailChimp software.
Developed by Execula LLC.
Note: Only if the customer has subscribed to your newsletter, he will be getting the mails.