Comment by DanielKehoe

Interesting. Could Plum Mail be suitable for communication in an open source community? There's a range of group communication platforms, including email newsletters, Slack channels, and Discord (and originally email lists and UseNet) that can be either distracting, hard to search, difficult to thread, or difficult to join. Is there a mechanism for people to invite themselves to a Plum Mail conversation from a sign-up form?