Stan Hoeppner:
> 1. Spamhaus has banned Google Public DNS resolver queries. I
> didn't know this until today. If Postfix is using Google Public
> DNS resolvers, rbl queries to zen.spamhaus.org fail but Postfix
> (Debian Lenny 2.5.5-1.1) logs NOTHING about it. Not the query
> attempt, not the failure, zilch, nut'n. This explains why I
The query returns NXDOMAIN. No-one has asked me to log all the
NXDOMAIN results for DNSBL queries.
Wietse
With query through Google DNS the host is "not listed" in zen.spamhaus.org:
% dig @8.8.8.8 a 105.49.136.89.zen.spamhaus.org
; <<>> DiG 9.6.1-P1 <<>> @8.8.8.8 a 105.49.136.89.zen.spamhaus.org
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 50578
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;105.49.136.89.zen.spamhaus.org. IN A
;; AUTHORITY SECTION:
zen.spamhaus.org. 150 IN SOA need.to.know.only.
hostmaster.spamhaus.org. 1001221345 3600 600 432000 150
;; Query time: 169 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Fri Jan 22 08:48:32 2010
;; MSG SIZE rcvd: 112
With direct query, the host is listed as you can see for yourself.
