can you tell me where to put these entries in ?? which file ?? is it local.cf or can i create my own file ? and put this file in the same directory as local.cf ?
You can put it in the same directory as local.cf, that's generally the easiest way.
In general SA parses *.cf in the site-config directory (usually this directory is /etc/mail/spamassassin)
and what about that antidrugs.cf file which is downloaded ? where to place that ?
The direct download for antidrug.cf is:
http://mywebpages.comcast.net/mkettler/sa/antidrug.cf
The link that Matt Y provided was a link to a page in the SpamAssassin wiki where people post links to their add-on rulesets that people may use.
<http://wiki.apache.org/spamassassin/CustomRulesets>http://wiki.apache.org/spamassassin/CustomRulesets
Disclaimer of bias: I am the author of the antidrug ruleset.
