Subscribe2 supports 2 different user types:
- Public Subscribers
- Registered Subscribers
Public Subscribers submit only their email address using the Subscribe2 form. They will receive an excerpt for each post made to the blog provided you have not published it to a category that you have defined as excluded in Options -> Subscribe2.
Registered Subscribers are users who have registered with your blog. They will have an additional option area under Users -> Subscription. This area allows them to choose which categories they would like to receive notifications about and also allows them to choose the email format.
Manage Tools -> Subscribers window you will see the different subscriber types. Registered on the right, confirmed public subscribers in the middle and unconfirmed public subscribers on the left.
In this panel administrators of blogs can manually add new public subscribers, confirm incomplete public subscribers and bulk subscribe registered users to defined categories.