Migadu certainly sounds good, but even their biggest plan seems a little on the smaller side. We are big fans of actionable email notifications that can be resp

Migadu certainly sounds good, but even their biggest plan seems a little on the smaller side. We are big fans of actionable email notifications that can be responded to, e.g., GitHub, Gitea, Active Collab. A response via email gets put into the respective platform/server, so we would very quickly chew through the in/out, and we get a huge amount of spam, and customer support emails.