+@item wl-summary-subject-function
+@vindex wl-summary-subject-function
+Format function to display subject in summary.
+The initial setting is @code{wl-summary-default-subject} and
+it will cut the list name part etc. on the top of the subject.
+To display subject as it is, set as follows.
+
+@lisp
+(setq wl-summary-subject-function 'identity)
+@end lisp
+