Andrew Redgwell wrote:
Jeremy Brooking wrote:
One would wonder why any sane mail admin wouldnt pull data from as many sources as possible when deciding on how to score spam.
No matter how inaccurate those sources may be ?
Id be interested in seeing where you get this information regarding the accuracy of sorbs dul list? Or is it a simple case of "Buhu I got on their list once, they must be totally innacurate!" ?
How many ISPs use a naming convention for their rDNS which clearly differentiates static from dynamic address space ? I could be wrong here, but from my experience, not many.
So a number of ISPs dont update their rdns often, this is the fault of sorbs how?
Considering this is one of the methods SORBS used to identify suitable netblocks for the DUHL, its no wonder so many static ranges are listed.
And being listed alone isnt enough to get your mail blocks by most peoples setups. As others have mentioned using sorbs dul list to add weight to any tagging can be, and in my experience is a very effective way of helping combat spam. The flaw isnt in their information, its in how the information they provide is used. PS: Whitelisting isnt that hard.