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If you're running a large site, processing upwards of tens of thousands of messages a day, the DCC maintainers have requested that you consider setting up your own DCC server as described in dccd(8), and arrange to peer with the rest of the public servers, to reduce their load.

DCC does not give hits in spamd

If DCC gives hits when run with "spamassassin" from the command-line, but not from spamd, you may have a PATH issue where the DCC client cannot be found in spamd's path.

Add the path to your dccproc tool to the local.cf file:

    dcc_path /usr/local/bin/dccproc