--- src/configure.default.orig	Fri Nov 23 17:31:16 2001
+++ src/configure.default	Tue Dec 18 23:34:07 2001
@@ -138,7 +138,9 @@
 # were a normal user. This isn't usually a problem, as most sites have an alias
 # for root that redirects such mail to a human administrator.
 
-never_users = root
+exim_user = mailnull
+exim_group = mail
+never_users = root : mailnull
 
 
 # The setting below causes Exim to do a reverse DNS lookup on all incoming
@@ -343,7 +345,8 @@
   allow_fail
   allow_defer
   data = ${lookup{$local_part}lsearch{/etc/aliases}}
-# user = exim
+  user = mailnull
+  group = mail
   file_transport = address_file
   pipe_transport = address_pipe
 
@@ -377,6 +380,7 @@
   file_transport = address_file
   pipe_transport = address_pipe
   reply_transport = address_reply
+  condition = !match{${rxquote:${home}}}{^/nonexistent}
 
 
 # This router matches local user mailboxes.
@@ -420,8 +424,8 @@
   delivery_date_add
   envelope_to_add
   return_path_add
-# group = mail
-# mode = 0660
+  group = mail
+  mode = 0660
 
 
 # This transport is used for handling pipe deliveries generated by alias or