Spamhaus replacement

[Budi Febrianto]

Right now we only use zen.spamhaus.org and happy so far, but because 
spamhaus is not free anymore, now I want some recommendation for others 
dnsbl.
Temporarily I plan to move it to others dnsbl while I do some 
administrative task to explain to our management that spamhaus is not 
free anymore.

Some search I found that I can use these dnsbls
cbl.abuseat.org
bl.spamcop.net
dialups.mail-abuse.org

I'm looking for dnsbl that know to be safe, because I want to place it 
in our sendmail, and the rest of spam will be taken care with mailscanner.

TIA.

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Budi Febrianto