====== Upgrade Spamassassin to 3.1.0 ======
<toc></toc>
<code>
perl -MCPAN -e 'install Mail::SpamAssassin'
perl -MCPAN -e 'install Mail::SPF::Query'
perl -MCPAN -e 'install Mail::DomainKeys::Message'
perl -MCPAN -e 'install Crypt::OpenSSL::Bignum'

cd /usr/lib/perl5/site_perl/5.8.3/Mail/SpamAssassin/Plugin/
wget -c 'http://issues.apache.org/SpamAssassin/attachment.cgi?id=3210&amp;action=view'
patch -p4 &lt; attachment.cgi\?id\=3210\&amp;action\=view
</code>
from <tt><em>etc/mail/spamassassin</em>*.pre</tt> enable:

<code>
loadplugin Mail::SpamAssassin::Plugin::DCC
loadplugin Mail::SpamAssassin::Plugin::Razor2
loadplugin Mail::SpamAssassin::Plugin::DomainKeys
</code>
Run <tt>spamassassin --lint</tt> to verify everything is OK.