Spam Configuration

I have a question on spam. I did a search and read all the relevant posts on the subject, but still don't see the answer I need. I have a client that is being bombarded by spam from outside sources, mostly porn.

First a little background. I have a RH9 server, with cpanel. I use spam assassin and have it enabled on the client's account. When I click on configure spam assassin, I have 2 blacklists listed, one from cbl.abuseat.org and one from sbl.csma.biz. In email filtering, I have spam assassin enabled, $h_X-Spam-Status: begins "Yes".

Is there anything else I can do to block spam on client accounts. Or blacklists I can install?

Is there a way to do this globally on WHM or via Shell so, that I don't have to configure this on individual accounts.

Thanks,

 

 

 

 

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