[opensuse] Fighting unwanted emails. Best practice

(Reposting this email with different subject as I fear it was sorted into the junk mail folder of most people on this list.) Hi I wondered if anyone here has a take on how to best setup a SUSE 10.1 server to fight incomming unwanted emails for 10-100 clients. We are situated in Norway so most english language mails are unwanted. Most articles I found on google are old and outdated. So I was wondering if anyone has something fresh... Especially on how to sort out mails based on english language... -- Regards Kenneth Aar