Logs for filtermail-transport changed in v0.7.2+. Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
Example Prometheus queries: Outbound errors by reason: sum by (reason) (rate(filtermail_transport_error_total[5m])) filtermail-incoming drops by reason: sum by (reason) (rate(filtermail_inbound_drop_total[5m]))