The Realtime Blackhole List (RBL) is a list of IP addresses responsible for spam. This list may contain IPs from ISP's whose servers are hijacked and used for spam relay. Subscribers to the RBL will know from which IP addresses to block email traffic. The server receiving the email will check the the connecting IP address in RBL first. If the IP address matches one in the RBL, then the connection gets dropped and and the incoming email is usually automatically moved to a spam folder.
Many of you are hosting your Websites with an ISP, often in a virtual multi-domain name system where many sites are hosted on the same server. If someone on the same server is known to send spam, your server may already be in the RBL. This tool will help you monitor and discover if you are listed in any of the major RBLs.
|RBL Lookup Tool - Main Features|
RBL Database Lookup- Lookup any IP address and see if it is listed in the dozens of RBL databases. Many ISP's query these RBL servers before delivering email to their users.
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