What's RBL-CHECK.org?
RBL-Check.org is a free tool for system administrators, who want to know, if an 
IP-address is listed on a RBL (Realtime Blackhole List). We will test your IP every hour. This tool is 
100% free.
Die Features
	- Quick-Check
Fast check if your IP address is listed.
 
	- E-Mail Monitoring
Submit your IP address and E-Mail address. As soon as your IP is listed our system will automatically notify you.
 
        - API
Remote-Check of your IP address for you monitoring system. Simple HTTP/GET API call.