Feature Request - API - Monitoring endpoints

[terba]

I would like to monitor my account usage via the API. Data I would like to query:

1. Emails received (count) by user (in a timeframe specified as a parameter to the endpoint like last hour, last 24 hours, current hour, current day, current billing month)
2. Emails sent (count) to non-Purelymail accounts by user (in a timeframe specified as a parameter as above)
3. Emails sent (count) by user (in a timeframe specified as a parameter as above)
4. Current storage consumption by user (as on the billing page)