Collect all missing eventlogs on service startup

Hi,
We are using "EventLog Analyser" for security reason to centralize all logon failure on our servers, so we have to be sure that all logs are collected in EventLog Analyser.
We find a problem if ELA is stopped for maintenance or any other reason.
-> When we restarted the service, events logs are collected from the time that the service is restarted and it does not collect events that has been logged during the time ELA is stopped, even if they were still present on the remote server.

It would be very interresting if ELA use a timestamp (for exemple) to collect all events not collected before when the service start (or restart).

Regards,

DPE