9.6.4 Processing spam with crm114
crm114 package provides
/usr/share/crm114/mailfilter.crm script which is written in
CRM114. This script provides a very effective spam filter which can be trained
by feeding the spam and the ham.
CRM114 is a small language designed to write filters in; consider it to be a
version of grep with super powers. See crm(1).
