[SURBL-Discuss] rDNS entries

Jeff Chan jeffc at surbl.org
Thu Jun 24 23:02:11 CEST 2004

On Thursday, June 24, 2004, 9:52:33 PM, Dave Navarro wrote:
> One thing I notice is that the IP addresses of blacklisted domains are not 
> always listed in the BL as well.

Yes, that's correct.  There are at least a couple reasons for this:

1. SURBLs should reflect what actually appears in URIs. If a
domain name is in the spam URI, then the domain name goes
onto the list.  If an IP address is in the URI, then an IP
address goes on the list.

2. Using SURBLs should not require names to be resolved into IP

You may find the FAQ of interest since it addresses some of
these issues and others in some more detail.


Jeff C.

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