--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/exim.conf.ex	Wed Jun 01 00:41:52 2016 +0200
@@ -0,0 +1,17 @@
+######################################################################
+#                    MAIN CONFIGURATION SETTINGS                     #
+######################################################################
+...
+
+perl_startup = use Exim::Grey qw(unseen);
+GREYLISTED = ${perl{unseen}{<$sender_address>:<$local_part@$domain>/$sender_host_address}{60}}
+
+acl_check_rcpt:
+
+  ...
+
+  defer  
+	 condition      = GREYLISTED
+         condition      = ${if <{$message_size}{1M}}
+	 log_message    = grey listed exigrey
+