Build a Website

I need a wordpress plugin to do the following: - There are two types of products - First type - has only one arrival date - There is also product that has several arrival dates, these are called "batches" - For each batch arrival user gets email arrival dates are set from the admin panel - CRON then checks it and sends out emails to subscribed users - There are also "email templates", where email templates are constructed (perhaps we can use CF7?) - App also counts subscribed users as well