Agent logs does not appear after enabling anti spam feature on hub transport server

Good day,

after enabling anti spam feature in exchange 2010 - Hub Transport role and restarting the MS Exchange Transoport service , the logs does not exist in the folder:

C:\Program Files\Microsoft\Exchange Server\V14\TransportRoles\Logs\AgentLog

despite that in the "EdgeTransport.exe.config" file it is enabled :

 <add key="AgentLogEnabled" value="true" />

any suggestion to enable it or if it is enabled where is its location?

Regards

Elias Dayeh