[orca-list] How do I unsubscribe and resubscribe with a new address please?

[Mallard <mallard ilgerone net>]

Hello list,

This address is going to be discontinued, and I need to re-subscribe 
with a new address.

I can't see any instructions at the bottom of this list's messages. How 
can I do that, pelase?

Thanks, Happy New Year to all,
Ollie