Get Email Metrics

Aggregate performance for one generated email across every API send of it: delivery, opens, clicks, bounces, complaints, unsubscribes, plus a daily time series and country breakdown. Numbers arrive asynchronously and cover roughly the last 30 days of raw history (aggregates persist longer). Opens are directional — Apple Mail Privacy Protection and bots inflate them; clicks and delivery events are stronger signals. Requires the email:read scope.