mx1.freebsd.org

[Chuck Swiger]

On Dec 1, 2008, at 11:30 PM, Ebbe Hjorth wrote:
> My postfix mail servers shows to messages in the queue saying
>
> (host mx1.FreeBSD.org[69.147.83.52] said: 450 4.7.1 Client host  
> rejected:
> cannot find your hostname, [86.58.167.132] (in reply to RCPT TO  
> command))
>
> But when i do a lookup or a reverse lookup, i find my hostname.
>
> Does mx1.freebsd.org have an old dns?

Dunno, but on my localhost running BIND-9.5.0p2 I see a SERVFAIL:

% dig -x 86.58.167.132
; <<>> DiG 9.5.0-P2 <<>> -x 86.58.167.132
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 51228
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;132.167.58.86.in-addr.arpa.	IN	PTR

;; Query time: 95 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue Dec  2 21:12:14 2008
;; MSG SIZE  rcvd: 44

Checking
% dig -x 86.58.167.132 @86.58.155.254
; <<>> DiG 9.5.0-P2 <<>> -x 86.58.167.132 @86.58.155.254
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 22015
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;132.167.58.86.in-addr.arpa.	IN	PTR

;; ANSWER SECTION:
132.167.58.86.in-addr.arpa. 43200 IN	PTR	mail01.apz.dk.

;; AUTHORITY SECTION:
167.58.86.in-addr.arpa.	1800	IN	NS	ns.plushost.dk.
167.58.86.in-addr.arpa.	1800	IN	NS	ns2.plushost.dk.

;; ADDITIONAL SECTION:
ns.plushost.dk.		3600	IN	A	86.58.155.254
ns2.plushost.dk.	3600	IN	A	86.58.155.253

;; Query time: 91 msec
;; SERVER: 86.58.155.254#53(86.58.155.254)
;; WHEN: Tue Dec  2 21:12:42 2008
;; MSG SIZE  rcvd: 147

% dig -x 86.58.167.132 @86.58.155.253

; <<>> DiG 9.5.0-P2 <<>> -x 86.58.167.132 @86.58.155.253
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 20622
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;132.167.58.86.in-addr.arpa.	IN	PTR

;; ANSWER SECTION:
132.167.58.86.in-addr.arpa. 43200 IN	PTR	mail01.apz.dk.

;; Query time: 90 msec
;; SERVER: 86.58.155.253#53(86.58.155.253)
;; WHEN: Tue Dec  2 21:12:47 2008
;; MSG SIZE  rcvd: 71

This second answer is kinda bogus-- no glue records.

-- 
-Chuck