Hello @Amichand Jat (NAV Fund Services)
To monitor and integrate Exchange Admin Center (EAC) audit logs, such as modifications to connectors and transport settings, with a SIEM tool, you'll need to set up syslog in your self-hosted Exchange environment.
You can follow this - https://learn.microsoft.com/en-us/azure/sentinel/data-connectors/microsoft-exchange-admin-audit-logs-by-event-logs
https://learn.microsoft.com/en-us/exchange/policy-and-compliance/admin-audit-logging/admin-audit-logging?view=exchserver-2019
Please feel free to contact me for any updates. And if this helps, don't forget to mark it as an answer.