I’m trying to configure email notifications for drone (latest master). But the documentation lacks or is unfindable. The http://docs.drone.io/trigger-email-notifications/ page says coming soon. And no complete reference on the .drone.yml format is available as far as I can find.
No. All plugins are third party plugins managed by the community. This is not something I am planning to change, unless of course someone donates enough money to the project to hire full time maintainers.