We need an email application that will send out daily posts from our Wordpress site. We've tried subscribe2 html but it doesn't work for us. Perhaps we have too many categories and too many subscribers. In any case the app needs to be able to send emails when the posts go live. We would also like to tag categories to specific email lists. We have 4 lists. Each varies in regards to the number of email addresses. The numbers range from 1200 to 400 per list. So, for example, Friday's post would go to the general list (1200 subscribers) and Friday's list (1000) subscribers. A total of 2200 readers should get the post in their inbox.
If you're familiar with Wordpress this should be a simple project.