Sorry about breaking the thread, institution system "upgrade" to O365 broke my world so I'm cutting and pasting into Outlook.

comprepair_jimberg--- via Mailman-users writes:

Can you setup Mailman3 for me? I have done apt install mailman3-full but I have no clue whaat I am doing.

You should seriously consider either going for a managed host or hiring somebody.

Unfortunately, you're asking a bit much for volunteer help. The problem is that Debian uses the FHS layout with the system Python,while we core devs recommend and use a self-contained "virtual environment" with an /opt-style layout. Debian also applies patches that may or may not be backports from more recent versions. We just don't know what's going to go wrong on a distro install. Mailman also has dependencies on several system components (webserver, mailserver, WSGI implementation, SQL database, text indexer) which each come in multiple flavors, but the range of combinations we're familiar with is limited and may not even include the Debian default list.

Once you have a working Mailman installation we'll be happy to help you tune it, though. (And you don't need core devs for that anyway, other Mailman site admins who hang out here can often help as well as well as we can.)

We are much more likely to have knowledge and experience to help with a virtual environment install as described in https://docs.mailman3.org/en/latest/install/virtualenv.html#virtualenv-insta... Here's an alternative, "from the ground up" step by step description of a specific combination of components: https://wiki.list.org/DOC/Howto_Install_Mailman3_On_Debian10 I think it should work just fine for Debian 11 as well. The author of "Mailman3 On Debian10" was a hosting and mailing list service provider, and used this recipe for all his hosts.

Regards, Steve