Hello Pusparaj Raut, 

Right now SmarterMail does not split up the logs by domain. So if you look at the SMTP log it will include all SMTP traffic into the server for all domains. The same for the Delivery Logs, this has all the External SMTP Deliveis and local deliveries and is not separated per domain. 

If you wanted to break them up you could as long as you do not remove the original file. The configured location (Settings -> General -> Paths) is the only place that we look for logs when using the Troubleshooting -> View Logs section. 

You could parse each log the next day and write out a new log with domain-specific entries to a location of your choice if you need Domain-specific entries. 

Thank you

~Tony

This is not practical.  The SMTP chatter is logged as it occurs, and the domain is not known until partway through the process.    Then there is the problem of a single message with recipients in multiple domains on your server.