Header information is stored at FML::Header class object. FML::Header class inherits Mail::Header. See Mail::Header for method details.
article_subject_tag = [\U$ml_name\E:%05d](available after 2002/10/29 snapshot)
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>.