A number of ISPs use njabl.org as a DNS BL server. However, starting jan 2 a new domain exists "njalb.org" which is serving A records for anything queried against it's DNS server. (note the difference: njaBL vs njaLB). Previous to this date a misconfigured ISP was just not being protected by the BL. Now, it's potentially dropping all mail from anyone because of the typo. # dig +short mail.merit.edu a 198.108.1.11 # dig +short 11.1.108.198.combined.njabl.org # dig +short 11.1.108.198.combined.njalb.org 64.20.43.107 66.45.232.66 66.45.232.75 66.45.237.187 I know of at least one ISP that is likely dropping mail from everyone... -- "In the bathtub of history the truth is harder to hold than the soap, and much more difficult to find." -- Terry Pratchett