create email list

I tried the search but didn’t find anything useful on this.

Is there any way to create a mailing list that consists of all registered users on my site?

When I create and publish new posts I want them to be emailed to all my registered users. I installed the cat2email plugin but that only sends the posts to a single email address. So from there I just need some way of setting up a mailing list that consists of all my registered users. This list also needs to be updated as new users register.

Any help would be much apreciated.