[MM3-users] Re: Add domain to Mailman, can't create list with that new domain

One thing that might help me understand this is knowing how Mailman sets the "primary" domain, in our case it's mydomain.com. I've searched through our codebases and the only places I find references to our domain are

1. hostname and site_owner in a file called mailman3.cfg
2. A few assorted "domain" settings in our kuberbetes values.yaml file.

I'm tempted to think it might be those domain settings, because Mailman has to be getting it's "primary" domain from somewhere, but I suspect those might be unrelated.