Checking proxies for blacklists?

Nikodim

It is possibe that proxies, especially semi private and others of similar breed can be listed on sites like spamhaus.

Is there any tool that you guys use for bulk checking of proxies?

It is also a good practice to check own proxies from time to time, blacklisting can seriously affect SER's performance (I think :-? ).

I can said that I tried some tools like charon, proxyfire - they doesn't seem to work.

Any ideas would be appreciated. >-