| Field | Internal name | Type | Warn | Crit | |
|---|---|---|---|---|---|
| received | received | gauge | None | None | |
| delivered | delivered | gauge | None | None | |
| forwarded | forwarded | gauge | None | None | |
| deferred | deferred | gauge | None | None | |
| bounced | bounced | gauge | None | None | |
| rejected | rejected | gauge | None | None | |
| held | held | gauge | None | None | |
| discarded | discarded | gauge | None | None | |