Change E-Mail address in list server

A long time ago I subscribed to the security announcement list, and I’m receiving announcements since then. However my E-Mail address had changed, and the messages are forwarded from the old address to the new one.
As it seems the current list server does not support a change of email address, and I cannot remember any authentication data for the list server (in case there would be a web interface to change the address).

The list server responded to “help”:

confirm     - Confirm a subscription or held message request.
echo        - Echo back your arguments.
end         - Stop processing commands.
help        - Get help about available email commands.
join        - Join this mailing list.
leave       - Leave this mailing list.
stop        - An alias for 'end'.
subscribe   - An alias for 'join'.
unsubscribe - An alias for 'leave'.
who         - Get a list of the list members.
confirm     - Confirm a subscription or held message request.
echo        - Echo back your arguments.
end         - Stop processing commands.
help        - Get help about available email commands.
join        - Join this mailing list.
leave       - Leave this mailing list.
stop        - An alias for 'end'.
subscribe   - An alias for 'join'.
unsubscribe - An alias for 'leave'.
who         - Get a list of the list members.

Which list? Full list address please. If it is really one of the @lists.opensuse.org lists you cannot change the email address. Your solution would be to unsubscribe with your old email by sending an email with that addres to <list_name>+unsubscribe@lists.opensuse.org , then send an email with the new address to <list_name>+subscribe@lists.opensuse.org

security-announce@lists.opensuse.org

So, the rest is in my reply: security-announce+unsubscribe@lists.opensuse.org