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

Wed Apr 14 22:16:19 UTC 2004

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