[Spamassassin Wiki] Update of "DnsBlocklists" by KevinMcGrail

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The "DnsBlocklists" page has been changed by KevinMcGrail:
http://wiki.apache.org/spamassassin/DnsBlocklists?action=diff&rev1=66&rev2=67

Comment:
Adding a link for DNS-Block rules

  
  == Questions And Answers ==
  
+ <<Anchor(dnsbl-block)>>
+ '''Q: My queries to a DNS-blocklist were blocked.  What does this mean?'''
+ 
+ A: DNS-Blocklists often run on the "free for some" model and/or they may limit the number of queries you can perform to maximize resources. 
+ 
+ If you were directed to this link from a rule description, then you have a DNS-Blocklist that is purposefully blocking your queries.
+ 
+ Resolving the block might be as simple as using your own caching nameserver to avoid being lumped together with other users queries; setting up your own mirror of the DNS-blocklist; or paying to use the blocklist.  The choice is up to the DNS-Blocklist administrator.
+ 
+ SpamAssassin supports the "free for some" model since it works for the majority of SpamAssassin installations.  However, we do not support methodologies that purposefully return wrong answers and those DNS-Blocklists will be disabled by default.
+ 
+ 
- '''Q: This documentation doesn't seem to cover how to configure dns-blocklists. It says "Support for these is built-in" but I can't believe that all free BL's is called each time a mail is beeing checked. There must be a way to configure which to use.'''
+ '''Q: This documentation doesn't seem to cover how to configure DNS-Blocklists. It says "Support for these is built-in" but I can't believe that all free BL's is called each time a mail is beeing checked. There must be a way to configure which to use.'''
  
  A: You're right.  You might look at the [[http://spamassassin.apache.org/doc/Mail_SpamAssassin_Conf.html|Mail::SpamAssassin::Conf]] documentation page which I admit doesn't really say how to configure which DNSBL to use, or the rules file [[http://spamassassin.apache.org/dist/rules/20_dnsbl_tests.cf|20_dnsbl_tests.cf]], for internal details, but no clear examples of how to configure the inclusion of various DNSBLs either.  For the latest list of DNSBLs you want to be using a recent SpamAssassin version (3.2.x at the time of this correction) and [[RuleUpdates| sa-update]], for the same reason that you wouldn't use an out-of-date virus scanner, but that also doesn't really have anything to do with the question.