How to use spamfilters at home

[Ralf Mardorf <ralf.mardorf@alice-dsl.net>]

Hi :)

do spamfilters for our MUAs interact with libraries used for servers?
At home we easily can mark junk manually. Joe and Sam for example aren't
really annoying for me. OTOH I sometimes use the spamfilter to sort out
mailing list threads, that aren't important for me and indeed, it works
too, neither mails from a list, nor from the author are filtered, only
the thread is filtered. This is easier to do, than to add a filter for
mail that isn't spam.

Unfortunately Joe and Sam still aren't filtered by the Debian mailing
list filter, but fortunately threads that aren't important for me, also
aren't filtered by the list server.

Is there such an interaction and if so, are there rules how we should
handle junk by our MUAs?

Regards,
Ralf