+=item --include=LOCATION
+
+=item -I LOCATION
+
+Include specified external in search. This option may be given
+multiple times.
+
+=item --exclude=LOCATION
+
+Exclude specified external from search. This option may be given
+multiple times.
+
+=item --only=LOCATION
+
+Use only the specified external for search. This option may be given
+multiple times, in which case the search uses only the specified set.
+
+=item --globoff
+
+=item -g
+
+Do not match locations using C<*?> wildcards and C<[]> ranges. This
+option applies to C<--include>, C<--exclude>, and C<--only>.
+
+=item --no-import-remote
+
+Disable the default behavior of memoizing remote messages into the
+local store.
+
+=item --lock
+
+L<mbox(5)> locking method(s) to use: C<dotlock>, C<fcntl>, C<flock> or
+C<none>.
+
+Default: fcntl,dotlock
+
+=item --limit=NUMBER
+
+=item -NUMBER
+
+=item -n NUMBER