Certainly.
Currently we offer http://www.ordb.org filtering for all accounts ON
TOP OF the current SpamAssasin that comes a la carte with CPanel. SpamAssasin
is defaulted as DISABLED. Just remember to NOT give out your email address
to many web sites (as that invites spam). Also, placing an email on
your web site (and your web site is popular on the web) also invites
spam.