Phish filters on exit nodes

[Geoff Down]

Hi,
  I work in antiphishing, and use Tor to access some phish sites.
Today I got an OpenDNS Phish Warning page instead of the phish I was 
trying to see. The site was visible with Tor switched off.
  Is there a policy regarding content filtering at exit nodes?
I recorded the 'Connections' data at the time, is there any point in 
trying to work out the exit node involved and trying to contact them?

Regards,
downie