~z [MIN]-[MAX] messages with a size in the range MIN to MAX *)
~= duplicated messages (see $duplicate_threads)
~$ unreferenced messages (requires threaded view)
+~* ``From'' contains realname and (syntactically) valid
+ address (excluded are addresses matching against
+ alternates or any alias)
</verb></tscreen>
Where EXPR, USER, ID, and SUBJECT are