See: http://www.ipillion.com/ip/202.164.55.103 (report of recent activity)
Spam activity in the past, 8 months ago: http://www.stopforumspam.com/ipcheck/202.164.55.103
It is a mail server and dictionairy attacker: http://www.projecthoneypot.org/ip_202.164.55.103
listed here: http://dnsbl.inps.de/query.cgi?action=check&lang=en&ip=202.164.55.103
polonus