[Spamassassin Wiki] Update of "DnsBlocklists" by MalteStretz

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The following page has been changed by MalteStretz:
http://wiki.apache.org/spamassassin/DnsBlocklists

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  '''Q. Wouldn't it be a good idea to run a local nameserver anyway? So, you can run caching-nameserver to cache blocklist query results.'''
  
- A. Yes!  In fact, if you're running a busy mailserver, this is ''essential'' for efficiency.  Two very quick simple solutions are [http://thekelleys.org.uk/dnsmasq/doc.html dnsmasq] and [http://cr.yp.to/djbdns.html djbdns].
+ A. Yes!  In fact, if you're running a busy mailserver, this is ''essential'' for efficiency.  See CachingNameserver.
  
  
  '''Q: Does anybody know of a good way to use the [http://www.cluecentral.net/rbl/showcountries.php cluecentral.net country lists]? I'd like to penalize certain countries from which I get a lot of spam and almost no real mail. I can't seem to get it working with multiple countries.'''