Spam Rats! RATS-NoPtr! IPv4

RATS-NoPtr is a collection of IP Addresses that have been found sending an abusive amount of connections, or trying too many invalid users at ISP and Telco's mail servers, and are also known to have no reverse DNS, a technique often used by bots and spammers. Email servers should always have reverse DNS entries.

Example Response Message

SPAMRATS IP Addresses See: http://www.spamrats.com/bl?XXX.XXX.XXX.XXX

Are you the maintainer of noptr.spamrats.com?

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!