How to Clear Out Logs for Exchange server 2013/2016/2019
This article will show you how to clear out logs in Exchange server. Usually, the exchange servers generate a lot of logs. Those logs can quickly fill up your disk space you might need to clear them out. Below we will go through the locations where you safely delete the logs.
- Go to C:\inetpub\logs\LogFiles
You can delete all logs in both W3SVC1 and W3SVC2 folders
- Go to C:\Program Files\Microsoft\Exchange Server\V15\Logging\Diagnostics
You can delete all logs from DailyPerformanceLogs and PerformanceLogsToBeProcessed folders
- Go to C:\Program Files\Microsoft\Exchange Server\V15\Logging\RpcHttp
You can delete all logs from W3SVC1 and W3SVC2
- Go to C:\Program Files\Microsoft\Exchange Server\V15\Logging\HttpProxy
You can delete the logs from all folders here
- Go to
C:\Program Files\Microsoft\Exchange Server\V15\Bin\Search\Ceres\Diagnostics\Logs
All logs can be delete here 
- Go to
C:\Program Files\Microsoft\Exchange Server\V15\Bin\Search\Ceres\Diagnostics\ETLTraces
All logs can be deleted here
That’s it! This should free up some disk space on your Exchange server.