My organization has mailing list for various topics, and over time we are hoping to move discussions currently on those lists over to discourse. It would be helpful if I could have a summary of a category to the corresponding list, but all I can see is a way to make myself a watcher.
Related - Our development teams each have a rotating “liaison”, and that liaison has an email address. Having emails about new posts going to the liaison would encourage people to post questions on Discourse that they are currently sending directly to the liaison (which results in duplicate questions all the time).