No subject


Tue Apr 2 00:56:56 UTC 2013


========================================================
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6
;; flags: qr rd ra; Ques: 1, Ans: 5, Auth: 3, Addit: 1
;; QUESTIONS:
;;      axs4u.net, type = ANY, class = IN

;; ANSWERS:
axs4u.net.      82060   NS      ns4.axs4u.net.axs4u.net.
axs4u.net.      82060   NS      ns1.axs4u.net.axs4u.net.
axs4u.net.      82060   NS      ns2.axs4u.net.axs4u.net.
axs4u.net.      82059   SOA     axs4us01.axs4u.net. root.axs4u.net. (
                        111     ; serial
                        10800   ; refresh (3 hours)
                        3600    ; retry (1 hour)
                        604800  ; expire (7 days)
                        86400 ) ; minimum (1 day)
axs4u.net.      86379   MX      10 mail.axs4u.net.

;; AUTHORITY RECORDS:
axs4u.net.      82060   NS      ns4.axs4u.net.axs4u.net.
axs4u.net.      82060   NS      ns1.axs4u.net.axs4u.net.
axs4u.net.      82060   NS      ns2.axs4u.net.axs4u.net.

;; ADDITIONAL RECORDS:
mail.axs4u.net. 86379   A       207.211.104.222

;; Total query time: 31 msec
;; FROM: ccux45 to SERVER: default -- 0.0.0.0
;; WHEN: Mon Jul 12 13:21:26 1999

==================================================

Notice the NS RRs  - missing dot.

Rob Moyer
Carlson Companies, Inc. 
Shared Services - UNIX Support


-----Original Message-----
From:	Butch Kemper [SMTP:kemper at tstar.net]
Sent:	Saturday, July 10, 1999 8:49 PM
To:	comp-protocols-dns-bind at uunet.uu.net
Subject:	Name Server Timeout and Sendmail



My customers are having troubles sending email to axs4u.net accounts. 
When I look in the mailq, I find the messages with this error message:

     Deferred: Name server: mail.axs4u.net.: host name lookup fail

Using dig, I have found that:

   1.  Asking for the mx records for axs4u.net returns no data just a
       status: SERVFAIL.

   2.  After locating the NS for the domain, I queried for the mx records
       and found:

              axs4u.net.              1D IN MX        10 mail.axs4u.net.

   3.  Asking the NS for any information about mail.axs4u.net, I found:

              mail.axs4u.net.         1D IN CNAME     axs4us02.axs4u.net.

   4.  Asking the NS for any information about axs4us02.axs4u.net, I found:

              axs4us02.axs4u.net.     1D IN MX        10 mail.axs4u.net.
              axs4us02.axs4u.net.     1D IN A         207.211.104.222

This appears to be a circular defination and that is why Sendmail is
giving the error message?

So, are the DNS definations at axs4u.net incorrect or is there something
wrong at my end?

On other thing, AOL seems to be able to send mail to users at axs4u.net.

Butch



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