How does spam will work in James 2.3.0?

[nurularesya ;p]

hello there...
  can anyone help me about how to configure spam?do i have to create maildb?do 
i uncomment bayesian analysis feeder?i would like my mail server can detect and 
eliminate spam when spam arrive?but how to change in config.xml?
   
  ********here the some spam comment code in config.xml*******
   
  <!-- Checks that the email Sender is associated with a valid domain. -->
         <!-- Useful for detecting and eliminating spam. -->
         <!-- For this block to function, the spam processor must be 
configured. -->
         <!--
         <mailet 
match="SenderInFakeDomain=64.55.105.9,64.94.110.11,194.205.62.122,194.205.62.62,195.7.77.20,206.253.214.102,212.181.91.6,219.88.106.80,194.205.62.42,216.35.187.246,203.119.4.6"
 class="ToProcessor">
            <processor> spam </processor>
         </mailet>
         -->
           <!-- Important check to avoid looping -->
         <mailet match="RelayLimit=30" class="Null"/>
           <!-- "not spam" bayesian analysis feeder. -->
         <!--
         <mailet match="[EMAIL PROTECTED]" class="BayesianAnalysisFeeder">
            <repositoryPath> db://maildb </repositoryPath>
            <feedType>ham</feedType>
            <maxSize>200000</maxSize>
         </mailet>
         -->
     
         <!-- "spam" bayesian analysis feeder. -->
         <!--
         <mailet match="[EMAIL PROTECTED]" class="BayesianAnalysisFeeder">
            <repositoryPath> db://maildb </repositoryPath>
            <feedType>spam</feedType>
            <maxSize>200000</maxSize>
         </mailet>
         -->
   
  **********end**********
   
  sould i uncomment this code to get spam ork?or can any one tell me how spam 
work in james 2.3.0?
   
  regards,
  nurularesya

                
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