Site is: http://www.rbl.jp -- RBL.JP stands for Realtime Blackhole List Japan and is the domain name the server designated for this service. RBL.JP is a system that allows anyone, free of charge, to search for the addresses of servers known to send spam. Most spam is usually sent by third parties from servers from which they are able to access.

More information about RBL JP can be found at their website: http://www.rbl.jp/allrbl-e.html

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