Scheduled email plug ins

Hi list!

I’m doing a blogging project and want to send daily emails to those who are following it. I realize this is pretty simple but I’m out of date and am looking for recommendations from people who can give me a recommendation.

I need a plug in that will let me:

* Allow people to sign up to receive the mailings (or opt out if they want, later)
* Compose and schedule mailings ahead of time
* Include only content that I specify and not advertisements for something else
* Designate my own email address as the “from” and “reply-to”

The recipient list will be pretty small (3 – 30), only people that I know pretty well. I have a private, hosted version of WordPress (whatever is most recent, probably 3.1).

What’s the best tool for this? Thank you for your advice in advance!
-A