I'm professional wordpress developer and level 2 seller .
I'll add popup subscriber system in your wordpress website .
When any one'll visit your website , after a few seconds a popup'll appear and ask for subscribe your newsletter or update letter .
When he/she'll subscribe , his/her username and email'll add to your mailchimp subscriber list automatically and by mailchimp campaign he/she'll receive updates ...
It is very fine for web traffic and keep in touch your visitors to your website.
Its very fine for web store also, clients can get updates of your new products
Add auto subscribe system
I'll configure popup subscriber newsletter attached with mailchimp