unwise filtering policy from cox.net

[goemon () anime net]

if anyone from cox.net is reading...

   ----- The following addresses had permanent fatal errors -----
<abuse () cox net>
    (reason: 552 5.2.0 F77u1Y00B2ccxfT0000000 Message Refused.  A URL in the content of your message was found 
on...uribl.com.  For resolution do not contact Cox Communications, contact the block list administrators.)

This seems a rather unwise policy on behalf of cox.net -- their customers 
can originate scam emails, but cox.net abuse desk apparently does not care 
to hear about it.