rmail-reply-regexp
rmail-reply-regexp is a variable defined in `rmail.el'.
Its value is "\\`\\(Re\\(([0-9]+)\\|\\[[0-9]+\\]\\|\\^[0-9]+\\)?: *\\)*"Documentation: Regexp to delete from Subject line before inserting `rmail-reply-prefix'.
rmail.el'.
Its value is "\\`\\(Re\\(([0-9]+)\\|\\[[0-9]+\\]\\|\\^[0-9]+\\)?: *\\)*"Documentation: Regexp to delete from Subject line before inserting `rmail-reply-prefix'.