UA is just someone's dopey juxtaposition of "lar" and "bin" --
207.67.117.17*
binlar_2.6.3 (binlar2.6.3@unspecified.mail)
robots.txt? Yes
ISP = Secure Computing / TW Telecom Holdings. A quick search of the full IP shows its alter ego(s):
207-67-117-17*.static.twtelecom.net
larbin_2.6.3 larbin2.6.3@unspecified.mail
larbin_2.6.3 (larbin2.6.3@unspecified.mail)
FWIW, I've rewritten ^207\.67\.117\. since at least 2007.