Anyone from AT&T here? (AT&T bogus DNSBL answers)

[Steve Linford <linford () spamhaus org>]

AT&T customers have contacted us saying they can't reach any of our 
DNSBLs, seems AT&T have defined a fake sbl.spamhaus.org zone in their 
DNS servers so when AT&T customers ask AT&T's NS 12.149.189.2 for 
sbl.spamhaus.org they get:

;; ANSWERS:
sbl.spamhaus.org        86400   IN      SOA     loopback root.loopback (
                        1       ; serial
                        3600    ; refresh
                        600     ; retry
                        3600000 ; expire
                        86400)  ; minimum

;; AUTHORITY RECORDS:
sbl.spamhaus.org        86400   IN      NS      loopback

;; ADDITIONAL RECORDS:
loopback        61703   IN      A       127.0.0.1

And it's not just affecting our users...

blackholes.mail-abuse.org       86400   IN      SOA     loopback root.loopback
blackholes.mail-abuse.org       86400   IN      NS      loopback
loopback        61520   IN      A       127.0.0.1

cbl.abuseat.org 86400   IN      SOA     loopback root.loopback
cbl.abuseat.org 86400   IN      NS      loopback
loopback        61480   IN      A       127.0.0.1

list.dsbl.org   86400   IN      SOA     loopback root.loopback
list.dsbl.org   86400   IN      NS      loopback
loopback        60855   IN      A       127.0.0.1

--
  Steve Linford
  The Spamhaus Project
  http://www.spamhaus.org