[eoc_Jason]

Each list is maintained by a separate group of people. Most are automatic testing scripts that look for certain ports and test to see if they can connect properly. I've noticed that the CBL list seems to generate a lot of false positives, and also contains a lot of stale data. (i.e. I had one IP that was last checked over 6 months ago and it was listed!)

Sites like the one you posted above is not considered an exploited proxy since they are offering the service. If you don't want users using that service than simply block their IPs as usual.

I modified my script slightly to help people that were experiencing errors. Basically I changed the line in the code to add the IP address as such:

PHP Code:

eval(standard_error(fetch_error('OPM_Deny',IPADDRESS))); 


Then modified my phrase as such:

<p><b>Sorry, but you do not have access to this forum!</b>
<p>The reason is you are trying to access this site via a <b>Blacklisted Open Proxy</b>! If you are using a dynamic IP you probably just got dumped with one that a person abused before you.
<p>Fear not! You can find out more info about where your IP is blacklised (and removal) via the <a href="http://www.spamhaus.org/query/bl?ip={1}">Spamhaus Website</a>.
<p>The IP in question is: <b>{1}</b>
<p><b>DO NOT</b> contact us about being removed, <u>we do not control the lists</u>! Please follow the link above, once you go to the site that has your IP listed, removal is usually a 1-click process. After submitting your IP for removal, the DNS is usually refreshed within the hour.