under the control of the dsn_advertise_hosts option, and routers may
have a dsn_lasthop option.
-JH/09 A timeout of 2 minutes is now applied to all malware scanner types.
+JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
+ default, modifiable by a malware= option. The list separator for
+ the options can now be changed in the usual way.