I am searching for WordPress newsletter plugin which will be similar to MailChimp.
Ideally, this newsletter plugin should have such features:
- easy import/export of subscribed users via csv files
- group users by categories (for example WordPress, Web-Design etc; and possibility to send some newsletters to specific categories)
- users can easily subscribe/unsubscribe via the website
- statistics of subscribed/unsubscribed users
- archive of previous newsletters
- advanced search with various filters
- cleaning of emails duplicates
Can you give some advice or point me in the right direction?