[Mailman-Users] Auto-deleting mail from outside .no?

[Thomas Gramstad]

I have many small lists in Norwegian and they're all being
hit by a lot of spam. Yes, the spam filter holds them back --
but then I get a /lot/ of mail about new messages waiting,
and it's a big job moderating them.

What I really want is the option to set that anything mailed from
an address that does not end with .no is automatically deleted and
I never see it. Is that possible, per list or even per domain/for
all lists?

Thomas Gramstad