[support] Mail to forum?

[Bob Morse]

I am trying replicate the functionality of yahoo or google groups. That 
is, the ability to allow people to have discussions via email that are 
also stored on the web as threaded discussions and are searchable. I've 
tried some combinations of modules but haven't come up with anything 
that does quite what I want.

I'd like this to work withing Organic Groups. I did activate Forum, and 
installs OG Forum and Subscription and Subscription OG so that group 
members should be able to receive email notice of posts to the Group's 
forum, but to reply they will have to return to the site.

I'm running 5.7 on this site.

Thanks for any help offered.