MX record IP address instead of hostnames

[Mark Andrews]

I suspect a operator error that has now been fixed.  If you put IP
addresses in the MX records, instead of hostnames, the current $ORIGIN
will be appended which is born out by looking at the address records
for the mail exchangers.

Mark

[drugs:~/cvs/bind9] marka% dig mx coop-uspto.gov

; <<>> DiG 9.6.0-APPLE-P2 <<>> mx coop-uspto.gov
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 39502
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 1, ADDITIONAL: 3

;; QUESTION SECTION:
;coop-uspto.gov.			IN	MX

;; ANSWER SECTION:
coop-uspto.gov.		7157	IN	MX	5 coop-mbxhc-0.coop-uspto.gov.
coop-uspto.gov.		7157	IN	MX	5 coop-mbxhc-1.coop-uspto.gov.

;; AUTHORITY SECTION:
coop-uspto.gov.		2983	IN	NS	dr-coopdns-1.coop-uspto.gov.

;; ADDITIONAL SECTION:
coop-mbxhc-0.coop-uspto.gov. 7187 IN	A	151.207.128.22
coop-mbxhc-1.coop-uspto.gov. 7196 IN	A	151.207.128.23
dr-coopdns-1.coop-uspto.gov. 2984 IN	A	151.207.240.200

;; Query time: 3 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed Jun  8 10:34:14 2011
;; MSG SIZE  rcvd: 165

[drugs:~/cvs/bind9] marka% 


In message <2AA71BEDEBCF80449E35B7B640700BE4364424E51F at EMAIL4.uspto.gov>, "Lear
, Karen (Evolver)" writes:
> Thanks.  
> 
> ________________________________________
> From: bind-users-bounces+karen.lear=uspto.gov at lists.isc.org [bind-users-bounc
> es+karen.lear=uspto.gov at lists.isc.org] On Behalf Of Eivind Olsen [eivind at amin
> or.no]
> Sent: Tuesday, June 07, 2011 5:38 PM
> To: bind-users at lists.isc.org
> Subject: Re: MX record IP address instead of hostnames
> 
> Karen Lear wrote:
> 
> > Can anyone tell me why my MX record for the coop-uspto.gov domain are IP
> > addresses instead of hostnames?
> ...
> > Non-authoritative answer:
> > coop-uspto.gov  mail exchanger = 5 151.207.128.23.coop-uspto.gov.
> > coop-uspto.gov  mail exchanger = 5 151.207.128.22.coop-uspto.gov.
> 
> I can't, no. It looks fine enough when I check here (a bit odd to only
> have a single nameserver, but that's beside the point).
> 
> [eivind at vimes ~]$ dig +short mx coop-uspto.gov
> 5 coop-mbxhc-1.coop-uspto.gov.
> 5 coop-mbxhc-0.coop-uspto.gov.
> [eivind at vimes ~]$
> 
> Regards
> Eivind Olsen
> 
> 
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-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org