MX doesn't resolve if not helped a bit...

[James A Griffin]

Sacha Labourey wrote:
> 
> Hello James and Mark,
> 
> Thank you for your this info. I've corrected it. Nevertheless, my problem
> still seems to happen.
> 
> What do you get when you try to MX-resolve cogito-info.com. from a "clean"
> DNS (without any cached info)? does it work?
> 
> Thank you a lot for your time. Cheers,
> 
>                                                 Sacha
> 
> P.S.: James, what is this "Sender: artch at cogito-info.com" testing for?
> 
[snip]

Sacha,

When I stop and then restart one of my test dns servers (sparta)
followed by: 

     dig @sparta.athena.inc. cogito-info.com. mx

I get what looks like a good (non-auth) answer: 

; <<>> DiG 9.1.1 <<>> @sparta.athena.inc cogito-info.com mx
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 38948
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2
 
;; QUESTION SECTION:
;cogito-info.com.               IN      MX
 
;; ANSWER SECTION:
cogito-info.com.        86400   IN      MX      10 mail.cogito-info.com.
 
;; AUTHORITY SECTION:
cogito-info.com.        172795  IN      NS      NS2.COGITO-INFO.CH.
cogito-info.com.        172795  IN      NS      NS1.COGITO-INFO.CH.
 
;; ADDITIONAL SECTION:
mail.cogito-info.com.   86400   IN      A       194.38.95.242
NS1.COGITO-INFO.CH.     86399   IN      A       194.38.95.241
 
;; Query time: 470 msec
;; SERVER: 192.168.1.8#53(sparta.athena.inc)
;; WHEN: Tue May 29 08:13:51 2001
;; MSG SIZE  rcvd: 136

The reverse dig -x 194.38.95.242 returns two PTRs and a CNAME

242.95.38.194.in-addr.arpa. 86400 IN    CNAME  
242.240-28.95.38.194.in-addr.arpa.
242.240-28.95.38.194.in-addr.arpa. 3600 IN PTR  mail.cogito-info.com.
242.240-28.95.38.194.in-addr.arpa. 3600 IN PTR  mail.cogito-info.ch.

As to your P.S.  I do not understand what the "Sender ... " message is. 
My login ID is artch, but how this got appended to form an email
address, I do not know.

Regards,
Jim