** WYSIWYG editing support
** Use MIME-Preview like tag and display
+
+** Check available MIME-charset
+
+ MIME-charset \e$B0J30$,@8@.$5$l$k>l9g$N=hM}$r;XDj$G$-$k$h$&$K$9$k!#\e(B
+
+ For example:
+
+ (a) translate problematic characters to similar representation
+ (b) display warning message
+ (e.g. "`x-ctext' is generated. Do you send it? (yes/no)")
+ (c) stop sending