@candidexmedia Great! I'm going to write it up a bit more soon, but its a self-hostable service, backed by a postgres database, that watches feeds, determines when items are "finalized" in some sense, assigns them to subscription which can be one-post-per-mail newsletters, daily or weekly roundups, every-n posts, etc, and mails them out accordingly. The mailings are styled by templates you can modify or replace. I'm working now on documentation and tutorials. The code…https://github.com/swaldman/feedletter
@candidexmedia if you are interested in trying to self-host, i'd be glad to help. if you are less interested in that, would just like an RSS-tonewsletter bridge hosted, I'm glad to talk about that too.