Proton Mail lacks a developer-facing event/API platform for backend automation. I need machine-to-machine notifications for incoming email (webhooks/events) and programmatic mail access without relying on Proton Bridge or desktop clients.
Maybe allow users to opt into developer integrations (webhooks/API access) for specific addresses or folders, even if that requires a different trust model or user-granted application permissions.
Or api access via user-held keys.