Fasthosts is a provider of Internet access and hosting services based in England. Fasthosts uses this list to block email coming to their servers. They monitor incoming mail by type and quantity. If they belive that an IP sends large amounts of email and is categorised as SPAM they list the IP on this RBL.
Is the information on our site wrong or incomplete? You don't want us to monitor your blacklist? Or do you operate a similar blacklist? We would like to hear from you!
We keep some statistics on blacklists. Below is the graph for rbl.fasthosts.co.uk. We test blacklists by asking them to respond to known IP's that are blacklisted and known IP's that can't be blacklisted. Not every blacklist has such IP's, we test them with what is possible. We keep if we get any response or error messages and the response duration. Lower response times are better. These statistics may be useful for email server administrators to pick which blacklist to use.