Dear Sriyash
it depends on what you wold like to check. If you would like to check the mime dataflow of inbound mail than you should activate to save mime for inbound. After activation you can send email to the system and check it in tr soin. Here you will see (in the last column) that the mime dataflow is available and you can open it and check it.
This report we use only for analizing how the mime is build up.
Best regards
Jozsef