How to Configure Diagnostic Logging for DSN
Use the following procedure to configure diagnostic logging for DSN.
Procedure
To configure diagnostic logging for DSN
Start Exchange System Manager: Click Start, point to All Programs, point to Microsoft Exchange, and then click System Manager.
In the console tree, expand Servers.
Right-click the server you want, and then click Properties.
In <Server Name> Properties, click the Diagnostics Logging tab.
Under Services, click MSExchangeTransport.
Under Categories, click NDR.
Under Logging level, click None, Minimum, Medium, or Maximum. Click Maximum for troubleshooting purposes.