### router/900_exim4-config_local_user
#################################
+# This router matches local user mailboxes. If the router fails, the error
+# message is "Unknown user".
+
local_user:
debug_print = "R: local_user for $local_part@$domain"
driver = accept
check_local_user
local_parts = ! root
transport = LOCAL_DELIVERY
-
-
-
+ cannot_route_message = Unknown user