[MM3-users] Mailman sending email from user@example.com

I have defined an additional SITE in django and the SITE_ID value in /etc/mailman3/settings.py is set to reference that site's ID value.

Messages for a list being distributed that are generating certain bounce errors are resulting in email from Mailman 3.x being sent to the list owners from the address user@example.com.

Is there something else to update in the settings files, Django or the database to make it use the list owner email address tied to the domain of the site?

Thanks, David Goldsmith