[Mailman-Users] Simple question about "Protected groups"

Hi all,

One of our customer's requirements is that the application is able to contain protected groups: groups (or lists) that contain users' mailaddresses from which they cannot unsubscribe.

I have gone through the admin pages on a test-machine and the online FAQ's but so far I haven't seen anything that could comply to my customer's requirement.

Did I miss something or is it just not possible?

Thanks in advance,

Quinten

Unix Administrator NCR Nederland N.V.