Jared Atchison

This plugin is for bbPress 2.x
Many people who run forums would like to know when a new topic (thread) has been posted but do not have the time to constantly check their forum for activity. This solves that!
This plugin will send an e-mail notification to specific addresses when a new topic has been posted. The users who receive notification along with a simple e-mail template is configured in the bbPress settings.
See the <a href="http://www.jaredatchison.com/2011/08/28/bbpress-new-topic-notifications/" rel="nofollow ugc">author website</a>.

bbPress New Topic Notifications

Send notification emails to specific users when a new bbPress topic is posted.

Stefano

This add-on plugin for bbPress will allow anonymous users to subscribe to topics and get email notifications when a new reply is posted. The notification email includes an unsubscribe link.
bbPress notifications will keep to go out to registered users, this plugin only extends the thing to anonymous posters as well!
See the project on <a href="https://github.com/TheCrowned/bbPress---Anonymous-Subscriptions" rel="nofollow ugc">GitHub</a>.
Available in English, Italian, German, Norwegian, Ebrew, Serbian.

bbPress – Anonymous Subscriptions

A simple plugin to allow anonymous bbPress users to subscribe to topics and get email notifications when a new reply is posted.

bbPress New Topic Notifications vs bbPress – Anonymous Subscriptions