Jennifer M. Dodd

bbPress Email Notifications provides users with various email notifications relating to forum changes, as well 
as the ability to turn these notifications off. It overrides the bbPress-provided ‘Subscribe’ function, 
allowing users to turn all subscribed topic notifications off and on in one location.
BuddyPress users can update their bbPress email preferences at Member > Settings > Notifications. WordPress 
users can update their preferences at Users > Your Profile.
This plugin deals solely with bbPress plugin forums, and not with BuddyPress group forums.
Filters are available for modification of plugin behavior.
<h3>Credits</h3>
Development funded, in part, by Ariel Meadow Stallings and the Offbeat Empire.

bbPress Email Notifications

Provide notification emails and controls for bbPress subscriptions, merge, and split functions.

Aaron Forgue

<a href="http://www.vbpress.com/" rel="nofollow ugc">vBPress</a> is a WordPress plugin that seamlessly integrates WordPress with vBulletin.

vBPress

vBPress seamlessly integrates WordPress with vBulletin

bbPress Email Notifications vs vBPress