1) Not working system : Appserver is 6.1.1 build no 8850 for Linux. this is a midsourcing deployment. For this system bounce gets qualified as soft but retries do not work. I am using the default settings. (Tried mailbox full and invalid email)
Working System : Build number is 6.1.1 build no 8850. This is a standalone deployment.
2) I am not sure how to check this point. I checked the the Mail rule set under Non deliverables management. Is this what you are looking for? Please provide more information