Correct the location of the socket, and the user the daemon runs as.

Index: milter-greylist-4.3.4/greylist.conf
===================================================================
--- milter-greylist-4.3.4.orig/greylist.conf	2009-10-06 19:24:34.371007193 +0100
+++ milter-greylist-4.3.4/greylist.conf	2009-10-06 19:25:38.169007333 +0100
@@ -6,8 +6,9 @@
 #
 
 pidfile "/var/run/milter-greylist.pid"
-socket "/var/milter-greylist/milter-greylist.sock"
-dumpfile "/var/milter-greylist/greylist.db" 600
+socket "/var/run/milter-greylist/milter-greylist.sock"
+dumpfile "/var/lib/milter-greylist/greylist.db" 600
+
 dumpfreq 1
 user "smmsp"
 
@@ -31,6 +32,15 @@
 # Your own network, which should not suffer greylisting
 list "my network" addr { 127.0.0.1/8 10.0.0.0/8 192.0.2.0/24 }
 
+# Your MXes and Mailforwardinghosts, Mailinglistsproviders, which you 
+# don't want to annoy.
+list "my friends" addr {   \
+	70.103.162.0/24    \ # Debian Mail+Listservers. NEVER unwhitelist them.
+	140.211.166.0/24   \ # Debian Bugs
+	192.25.206.0/24    \ # Debian web/cvs/people
+	194.109.137.218/32 \ # Debian security/www-master.d.o
+}
+
 # This is a list of broken MTAs that break with greylisting. Derived from
 # http://cvs.puremagic.com/viewcvs/greylisting/schema/whitelist_ip.txt?rev=1.16
 list "broken mta" addr {   \
@@ -125,6 +135,7 @@
 
 # And here is the access list
 racl whitelist list "my network"
+racl whitelist list "my friends"
 racl whitelist list "broken mta"
 #racl whitelist dnsrbl "MTAWL"
 #racl blacklist urlcheck "userpref" $usrRBL "CBL" dnsrbl "CBL" \
