legitimate reasons for this (host died, network died), but if it repeats a lot
for the same host, it indicates something odd.
-.vitem %&lookup%&
+.vitem &%lookup%&
A DNS lookup for a host failed.
Note that a &%dnslookup%& router will need to have matched
its &%fail_defer_domains%& option for this retry type to be usable.
Also note that a &%manualroute%& router will probably need
-its &%host_find_failed%& option set to &%defer&%.
+its &%host_find_failed%& option set to &%defer%&.
.vitem &%refused_MX%&
A connection to a host obtained from an MX record was refused.