@item wl-draft-use-cache
@vindex wl-draft-use-cache
\e$B=i4|@_Dj$O\e(B @code{nil}\e$B!#Aw?.$9$k%a%C%;!<%8$r%-%c%C%7%e$9$k$+$I$&$+$r<($9%U\e(B
-\e$B%i%0$G$9!#\e(BNon-nil \e$B$J$i%-%c%C%7%e$7$^$9!#\e(B
+\e$B%i%0$G$9!#\e(BNon-nil \e$B$J$i%-%c%C%7%e$7$^$9!#$?$@$7\e(B @code{wl-insert-message-id}\e$B$,\e(B
+non-nil\e$B$N>l9g$O%-%c%C%7%e$5$l$^$;$s!#\e(B
@item wl-auto-flush-queue
@vindex wl-auto-flush-queue
@item wl-draft-use-cache
@vindex wl-draft-use-cache
-The initial setting is @code{nil}.
-If non-nil, cache the message which is sent.
+The initial setting is @code{nil}. If the value is non-nil and
+@code{wl-insert-message-id} is non-nil, cache the message which is sent.
@item wl-auto-flush-queue
@vindex wl-auto-flush-queue