In recent (about one or two week), when I post on the Group’s forum, all members in my website have receive the email notify.
I use bbPNNS/BuddyPress Bridge 188.8.131.52 and bbPress Notify (No-Spam) 1.15, and my BuddyPress and bbPress plugins are the latest.
My WordPress wersion is 4.7.
Please see my configure about E-mail Notifications
and help us how can we resolve this issue,