Forum Moderators: open
75.101.195.nnn - - [28/Nov/2008:02:20:48 -0600] "GET /robots.txt HTTP/1.0" 403 284 "-" "rdfbot/1.0 (rdfbot-support@rediffmailpro.com)"
67.202.58.nn - - [28/Nov/2008:09:37:41 -0600] "GET /robots.txt HTTP/1.0" 403 284 "-" "rdfbot/1.0 (rdfbot-support@rediffmailpro.com)"
Edit, added more ranges