IMPORTANT Please read and understand the rsync usage policies before registering and using rsync access.
, if you are at this page because your email is blocked or your IP is listed, you are on the WRONG page.
If you are here because your IP is listed in the CBL, go here.
This page is exclusively for email providers wishing to rsync download the CBL database for use in mail filtering, or for large connectivity providers who wish to rsync the CBL database to find compromised machines in their own network.
This page is NOT intended to help you find out what is wrong with a specific IP. This page does not have anything to do with delisting listed IPs.
it is CBL policy that spam filter and spam filter service vendors MUST obtain a paid-for feed from Spamhaus. Filter providers that do not have a paid-for feed from Spamhaus, or sites that have not registered for rsync MAY find themselves inhibited from obtaining a CBL zone feed without warning.
WARNING!, Large scale sites (eg: large ISPs) are expected to acquire a paid rsync feed from Spamhaus, rather than an rsync feed from the CBL.
Registration is being strictly enforced at this time. If the IP issuing a rsync download request isn't registered, the zone transfer will be denied.
Rsync downloads to the CBL have become far more popular than originally anticipated, and is consuming considerable bandwidth resources on our servers. In future, it may be necessary to restrict/limit access.
We strongly recommend that you obtain a paid XBL (or SBL-XBL) feed instead of the CBL see: SpamHaus. The list is more all-encompassing, and the payments help ensure the continued survival of SpamHaus. However, the CBL list remains freely accessible.
By registering, we can contact you if we have to make changes (ie: move or add servers, discontinue public access), or notice problems with how you're downloading the zone.
Once you have registered, you will receive an email when your IP address has been enabled for rsync download. If you do not hear from us in 48 hours, please contact us at email@example.com.
We will not share this information with anyone, it will be used exclusively for informing you of changes to the CBL.