All filter are enabled by default.
"mime component filter" is important. By default mime component filter is enabled, Only text/plain article can be passed through fml8.
To disable mime component filter on all ML's, set
use_mime_component_filter = noat site_default_config.cf.
To customize mime component filter, set
use_mime_component_filter = yesat site_default_config.cf, and edit rules in /usr/local/etc/fml/mime_component_filter file.
author's homepage is www.fml.org/home/fukachan/.
Also, visit nuinui's world :) at www.nuinui.net.
For questions about FML, e-mail <fml-bugs@fml.org>.