| Name | Type | Description | Notes |
|---|---|---|---|
| time | string | The time window these `received`, `sent`, and `volume` statistics cover. | [optional] [default to '1h'] |
| usage | int | Total messages accepted during the current billing cycle. Used to calculate the `cost` value. | [optional] |
| currency | string | The ISO 4217 currency code for this account (e.g. `USD`). | [optional] |
| cost | float | Estimated cost for the current billing cycle combining the base plan price and per-email charges ($0.20/1000 emails). | [optional] |
| received | int | Count of messages accepted by the relay within the selected `time` window. Includes messages still in queue. | [optional] |
| sent | int | Count of messages successfully delivered to the destination MX within the selected `time` window. Will be ≤ `received`. | [optional] |
| volume | \Interserver\Mailbaby\Model\MailStatsVolume | [optional] |