Mail::SpamAssassin::Plugin::TextCat says zh - Chinese (both Traditional and Simplified) zh.big5 - Chinese (Traditional only) zh.gb2312 - Chinese (Simplified only)
I want to block zh.gb2312. OK, I should use ok_languages en zh.big5 but what about UTF-8 etc. zh messages? I don't want to block them, all I want is to block zh.gb2312! Of course there is no "not_ok_languages zh.gb2312" P.S., using "add_header all Languages _LANGUAGES_" shows that the man page doesn't tell the whole story. Often the charset is appended even for non zh languages.