Hi Jonathan,

> Wouldn't this break threads that spans multiple NetBSD mailing lists,
> when the sender of a message isn't subscribed to _all_the NetBSD
> mailing lists the message is addressed to. 

while this wouldn't be too bad, because I hardly see any good reasons for crossposting.
It's abused more often then not :-) ...

> Or messages sent to both NetBSD and FreeBSD lists....

I don't see an easy solution to fix this, other then kludges :-( Well, too bad,
it just popped into my mind and I thought it might be a good idea. Hmm, need to
go and figure for a better solution :-(

  Guenther