I feel like I'm missing something, because I can't find a module that does this, but it seems like it should be really common.
I would like users to be able to simply enter their email address to subscribe to my site so that I can send them an email whenever I post a new Article. I don't want to require them to create a full drupal account, just a simple email address and then click a verify link.
I've tried Simple Subscription and it provided a simple form block which provides essentially what I'm looking for on the front end:
However, when a user enters their email address this module doesn't provide a verification email. So, I need something more complicated that Simple Subscription.