[SURBL-Discuss] OB FPs
Jeff Chan
jeffc at surbl.org
Tue Sep 28 01:28:06 CEST 2004
On Monday, September 27, 2004, 4:11:16 PM, Patrik Nilsson wrote:
> How many of those that currently get listed have name servers listed in SBL
> at the time they get listed?
I don't have stats currently, but there is certainly overlap.
> If a substantial part do have their name server listed in SBL, have you
> considered using that type of data as an aid to filter out FPs in real time?
Lack of inclusion in SBL can and probably should be a flag
to check for FPs, but there are spam domains, especially
new ones, that sometimes don't match SBL, for example due
to using a new name server or hosting IP space.
SBL inclusion or non-inclusion is definitely a useful spam
versus ham heuristic however.
Jeff C.
--
"If it appears in hams, then don't list it."
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