we are using postfix mailserver and running mailscanner on it.
currently we cannot manage bounce emails per user account.
cause we couldn't set multi return-path.
here is the scenario:
we have a lot of account which they can send email.
we want manage bounced emails for each accounts.
for example :
send account =
return path =
these settings should be set for each accounts.
currently we setted in postfix configuration:
notify_classes = bounce
then all bounced emails send above address for all accounts.
we want to deliver all bounced emails to sending accounts return path.
This meant we need to set that return-path (for bounced emails) for each account.
Then we able to manage bounced emails for each account.
after some search we found a solution for that I think.
there is a mechanism called VERP and you can see for details at [url removed, login to view]