I have developing a membership site with paid email newsletters. The website will work like this. There three membership plans : basic, intermediate and advance. the user after choosing the plan has to choose the duration like 1 week 1 month and 3 months. Based on that criteria i will send email newsletters throught mailchimp. For example Advanced user receives all emails i will send on mailchimp. Intermediate user receives less and basic less than intermediate. i must be able to filter which messages from mailchimp newsletter each categorie can receive. Can u provide a plugin proper for this purpose. i can buy premium wordpress plugins also. also for mailchimp i will need a premium account? thanks in advance and sorry for my english..