Hugo <Nabble> wrote
If you are not the owner of that mailing list, you may try to find him/her and explain the problem.
Drawing attention to this topic, this message is posted to the address given at the foot of <
https://www.ietf.org/mailman/listinfo/caldav>.
@ Lisa, a highlight from the beginning of this topic:
> AFAIR whenever I attempted to subscribe the special address @n2.nabble.com to the caldav list
> I received no invitation to confirm the subscription.