Milter-greylist

Hi,

got some .ua spam today and was wondering why the delay for hosts 
without reverse DNS doesn't work:

Copied from:
http://milter-greylist.wikidot.com/greylisting-hosts-without-reverse-dns

# Greylisting Hosts Without Reverse DNS
racl greylist domain 
/^\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\]$/ delay 1h


Logfile:
-----------
Sep  6 10:57:54 mailin sm-mta[12571]: u868vnV3012571: 
from=<tonva@...>, size=689, class=0, nrcpts=1, 
msgid=<001601d2081b$513e1cd0$311d8ada@MatricPCltpl9o>, proto=SMTP, 
daemon=MTA-v4, relay=[117.198.104.52]
Sep  6 10:57:54 mailin sm-mta[12571]: u868vnV3012571: Milter add: 
header: X-Greylist: Delayed for 00:10:11 by milter-greylist-4.3.9 (...); 
Tue, 06 Sep 2016 10:57:54 +0200 (CEST)
-----------

The 10 minutes delay is default, but above rules seems not to fit, 
although it is set before

   racl greylist list "grey users" delay 10m ......

Is "domain" the wrong keyword here?

Ciao!
Marcus