[NTLUG:Discuss] Strange DNS issues

[Neil Aggarwal]

Hello:

I am at my wit's end on this one and am hoping that someone
can lend me some insight:

Some of the emails I send from a domain I own get this message in
my mail log:

451 4.1.8 Domain of sender address admin at spammilter.com does not resolve

This domain has been set up for a long time, but when I do this
command on one of my linux servers:

dig mx spammilter.com

I get back no answers:

; <<>> DiG 9.2.3 <<>> mx spammilter.com
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 1863
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;spammilter.com.                        IN      MX

;; Query time: 4 msec
;; SERVER: 206.123.64.245#53(206.123.64.245)
;; WHEN: Fri Nov 11 09:58:54 2005
;; MSG SIZE  rcvd: 32

When I do the same query against one of the parent servers:

dig @206.123.70.53 mx spammilter.com

I get the correct answer:

; <<>> DiG 9.2.3 <<>> @206.123.70.53 mx spammilter.com
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 14806
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 1

;; QUESTION SECTION:
;spammilter.com.                        IN      MX

;; ANSWER SECTION:
spammilter.com.         38400   IN      MX      10 mail.spammilter.com.

;; AUTHORITY SECTION:
spammilter.com.         38400   IN      NS      jamm11.JAMMConsulting.com.
spammilter.com.         38400   IN      NS      jamm10.JAMMConsulting.com.

;; ADDITIONAL SECTION:
mail.spammilter.com.    38400   IN      A       206.123.70.53

;; Query time: 2 msec
;; SERVER: 206.123.70.53#53(206.123.70.53)
;; WHEN: Fri Nov 11 09:59:04 2005
;; MSG SIZE  rcvd: 126

Everything looks correct in the DNS settings.  Here is a page on
DNS Stuff that verifies it:

http://www.dnsstuff.com/tools/traversal.ch?domain=spammilter.com&type=MX

Any ideas what is happening?  

Thanks,
	Neil

--
Neil Aggarwal, JAMM Consulting, (214) 986-3533, www.JAMMConsulting.com
FREE! Valuable info on how your business can reduce operating costs by
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