mail.surbl
Check URIBL/SURBL lists if the host you entered shouldn't be mentioned in mail bodies.
tools & resources
Spam URI Realtime Blackhole Lists
Definition quoted from Wikipedia: "SURBL is an acronym for Spam URI Realtime Blocklists, a method for detecting spam by searching e-mail message bodies for Uniform Resource Identifiers (URIs) which are known to appear in spam messages. For example, if http://www.example.com is blacklisted, then all e-mail messages with a message body containing this URL will be classified as spam."Usage
Please enter the real hostname of your link, use example.com instead of www.example.com. Do not include a local path or protocol.For traditional IP-based RBL checks, see mail.rbl.

