Sendmail Blackhole List - Eliminate Most Spam

To configure sendmail to automatically bounce most spam use one of the countless blackhole lists that are readily available, and consistently maintained:

http://www.declude.com/Articles.asp?ID=97

An excellent blackhole list is maintained by njabl.org. Use is relatively straight forward. Add the following line to the end of your sendmail.mc file, then recompile the sendmail configuration file.

FEATURE(dnsbl,`combined.njabl.org',`Message from $&{client_addr} rejected - see http://njabl.org/lookup?$&{client_addr}')

For more detailed information on how to use this blackhole list you can visit their website directly:

http://njabl.org/use.html

I used to get well over 150 spam messages per day. Now I maybe get 5 total