I used to belong to a very nice boating forum where you could visit the forum on the web but it also functioned as a mailing list. Sadly they moved platform and changed to a forum which didn't support E-Mail.

I'm now looking for forum software which does what their old forum did, I want a web forum which also supports posting and reading by E-Mail. I've discovered Discourse which seems to do this but does anyone know of any other possibilities? To be installed on Ubuntu probably, either a real system or, more likely, a virtual server.