Assuming that doesn't work, there are three resolutions:

- Turn off the requirements for subscription, which will result in
the lists being filled with virus and auto-responder crap, but
Gmane will work.

- Make the lists at Gmane read-only (ie anyone can read, but you
still have to subscribe to post)

- Take the lists off Gmane

I am unlikely to do the first. We will probably have to do the
middle one.

Roger