Re: [SURBL-Discuss] RFC: How to use new data source: URIs advertised through CBL-listed senders

John Wilcock wrote:

Logically the lower levels would have higher FP rates, but can be given lower SA scores (or equivalent weightings in other client apps)

For that matter, it occurs to me that it could actually be a *good* thing if an obscure but legitimate domain gets listed at the lower levels of a multi-level system due to being mentioned in a big spam run, as its presence would, albeit temporarily, be a sign of spamminess. This logic wouldn't apply for more commonly-mentioned legitimate domains, but those will be on the SURBL whitelist anyway.

Obviously this only holds in the context of a weighted scoring system such as SpamAssassin, not one which excludes messages outright.

John.