[In the message entitled "RE: Schneier: ISPs should bear security burden" on Apr 29, 15:32, "Miller, Mark" writes:]

Unfortunately, a lot of static "business" DSL IP space is still on those lists and legitimate mail servers can get blocked. I usually use the DUL as a "white list" to negate hits on the traditional dnsbls since those are almost always stale.

We have worked very hard with the ISPs to ensure that legitimate static space isn't on the lists. We also do extensive amounts of work to ensure that isn't the case. You may be thinking of some other list, not the DUL. --