Looking for the best way to put a Newsletter feature in RW7 & Foundation

I’m a relative newbie and am developing a website for a sports and social club. I use Foundation and RW7 and want to send out a newsletter to subscribers. Can anyone suggest a good (and easy to use) stack for this?

I use Mailchimp for our club newsletters. I then have a small form on our website using html code that Mailchimp supply that is a ‘sign up for our newsletter’.
Hope that helps.

Joe Workman’s Post Office stack is a great way of managing subscriptions.

Thanks guys, I’ll check them out.