Tim, the qpsmtpd plugin that is blocking your mailman list addresses is the goodrcptto plugin. /var/service/qpsmtpd/config/goodrcptto
You need to add your list addresses to the goodrcptto list.
The easiest way of doing this is to create a custom template fragment
/etc/e-smith/templates-custom/var/service/qpsmtpd/config/goodrcptto/50mailman
and add your list email addresses to the template fragment 50mailman
and when finished and saved.
signal-event email-update
Check that the email addresses are added to /var/service/qpsmtpd/config/goodrcptto
I said that is the easiest way. The harder way would be to automate it by creating a script that would populate a database called mailman with the list names every time you create a new list.
The custom goodrcptto template fragment could then be scripted to access's the mailman database and use the listnames to update goodrcptto with listname@, list-admin@, list-owner@, list-bounces@ etc.
You would then be halfway to creating a good mailman contrib for SME7.
Jon