header APOSTROPHE_FROM From:addr =~ /'/ describe APOSTROPHE_FROM From address contains an apostrophe header APOSTROPHE_TOCC ToCc:addr =~ /'/ describe APOSTROPHE_TOCC To or CC address contains an apostrophe score APOSTROPHE_TOCC 1.000 # limit header STUDDLYCAPS Subject =~ /(?:[A-Z][a-z]+){3}/ describe STUDDLYCAPS ContainsThreeWordsLikeThis