lbj Do you mean by that getting posts as an email, or getting a notification for each post?
As I'm sure you've seen, there's several settings that you can activate to get notifications for discussions you follow, mentions etc.
This forum has most features that Discourse does, and Discourse have adopted things from this one (Flarum), I think they follow each other quite closely. Here you can install additional functionality via extensions, but it seems the one you'd want is currently not available.
It is a community-run open source project, which is good I think.
And if the content here proves valuable to you, perhaps you could make an exception and view posts in the browser?