Best Plugin without any cost

I was struggling to make my newsletter attractive. Finally, my search stopped here. I have been using this plugin for one month and I would say it is simply great. Easy to use with attractive newsletter design, you can also customize it with simple to use tools. You can import your past subscriber list. You can also watch the progress of activity on your newsletter such as how many opened, how many clicked. I rate this better than MailChimp. Just try it you won’t be disappointed.