Getting started with spam filtering

[Niklas Morberg <niklas.morberg@axis.com>]

I've read the documentation on spam filtering in the latest
CVS, and although it is very thorough, my head is spinning.
I just don't understand what to do to get started...

From the documentation it looks like spam.el is all I need,
but is this really the case? It seems like I need a spam
processor (whatever that is) as well . I'm guessing spam.el
is not a spam processor, right?. To further complicate
things I'm using nnimap which seems to narrow down the
options somewhat.

The documentation would be more useful (to me) if it could
explain the minimal stuff I need to get started. Is spam.el
enough? Will spam.el and spam-stat.el suffice then?

A recommendation of what spam processor to use would also be
helpful. (Are these spam processors at all available for us
Windows users, btw? Cygwin would work.) Do I have to use an
external program?

I'm sorry if I'm not making any sense, as I said I'm very
confused at the moment...

Niklas