On 2018-01-06 11:57, Jochen Theodorou wrote:
Is there somewhere an example for this? And mailing lists I can look at and a discourse forum that is synced with it?

http://discuss.dramatica.com/       (a software package site 'dramatica' - concetrating on Screen Writers)

Is a discourse powered forum which you as a user can configure to be email list like - I am a passive user so am not that qualified to judge.

It does show the forum side of "discourse" to good effect.