Milter-greylist

System : 
Linux mail-2012.trezor 2.6.32-220.17.1.el6.i686 #1 SMP Thu
Apr 26 13:37:46 EDT 2012 i686 i686 i386 GNU/Linux
I am using : sendmail-8.14.4-8.el6.i686,
milter-greylist-4.2.7-1.el6.rf.i686, MailWatch Version = 1.2.0, MailScanner
Version = 4.84.5, PHP Version = 5.3.3, MySQL Version = 5.1.61
And it generally works.
BUT the last few days my server is relaying mail from China
IP addressess.
I have checkjed it, but all checks say that it is not a open
relay (IP : 195.88.12.36, you can check too).
 
Characteristical for mails is this from logs :
“skipping greylist because this is the default action”
 
Please help!
 
Velda