DNS / MX problem

  • Thread starter Thread starter Jeremy
  • Start date Start date
J

Jeremy

Hello,

I have a problem with DNS server on Windows 2000 Server.

I don't receive e-mails on the correct server.
Example with "very-long-domain.com":
; Zone Records
@ A 66.192.XXX.XXX
@ MX 10 mail.very-long-domain.com.
ftp CNAME very-long-domain.com.
mail A 212.182.XXX.XXX
www CNAME very-long-domain.com.

E-mails are received by 66.192.XXX.XXX whereas they should be received by
212.182.XXX.XXX. Do you know how is it possible?? I specify that when I go
to http://mail.very-long-domain.com, I got an answer from the right server
(I mean the Web is OK, my problem is just with the e-mail).

Thanks in advance for your help !

Jeremy
 
nslookup
server ns1.cisco.com
set q=mx
very-long-domain.com

Who is listed there? I bet it's 66.192.XXX.XXX and not 212.182.XXX.XXX

Don't be shy about posting your real domain name, unless there is an
internal rule prohibiting that. It helps people help you better, IMO.

--
Sincerely,

Dèjì Akómöláfé, MCSE MCSA MCP+I
www.akomolafe.com
www.iyaburo.com
Do you now realize that Today is the Tomorrow you were worried about
Yesterday? -anon
 
Thanks for your answer.
I cannot post the real domain name, sorry.

nslookup
server ns1.cisco.com
set q=mx
very-long-domain.com

result :
Non-authoritative answer:
very-long-domain.com MX preference=10, mail
exchanger=mail.very-long-domain.com
Authoritative answer can be found from:
....ns1...
....ns2...
mail.very-long-domain.com A internet (IPv4) address=212.182.XXX.XXX

So I really do not understand why e-mails don't go to the right server
(212.182.XXX.XXX)...
When I send an e-mail to (e-mail address removed), I get a
mailer-deamon message from the other server (66.192.XXX.XXX) telling me that
he doesn't know this domain (which is obviously normal).

Jeremy
 
In
Jeremy said:
Thanks for your answer.
I cannot post the real domain name, sorry.

nslookup
server ns1.cisco.com
set q=mx
very-long-domain.com

result :
Non-authoritative answer:
very-long-domain.com MX preference=10, mail
exchanger=mail.very-long-domain.com
Authoritative answer can be found from:
...ns1...
...ns2...
mail.very-long-domain.com A internet (IPv4)
address=212.182.XXX.XXX

So I really do not understand why e-mails don't go to the right server
(212.182.XXX.XXX)...
When I send an e-mail to (e-mail address removed), I get a
mailer-deamon message from the other server (66.192.XXX.XXX) telling
me that he doesn't know this domain (which is obviously normal).

Jeremy

Can you try the nslookup from a machine outside of your network?

You can also check your domain records at:
dnsstuff.com
dnsreport.com

Unless since you are internal, and you have a split-horizon zone and you
manually created the record with the 66. address.


--
Regards,
Ace

Please direct all replies to the newsgroup so all can benefit.
This posting is provided "AS IS" with no warranties.

Ace Fekay, MCSE 2000, MCSE+I, MCSA, MCT, MVP
Microsoft Windows MVP - Active Directory
 
"Ace Fekay [MVP]"
In

Can you try the nslookup from a machine outside of your network?

You can also check your domain records at:
dnsstuff.com
dnsreport.com

Unless since you are internal, and you have a split-horizon zone and you
manually created the record with the 66. address.

OK, I give you the exact domain name :
harvestbirdhouse.com

You can try to send an e-mail to (e-mail address removed), you'll see that
is not the correct server who answers...
Thanks again :)

Jeremy (and sorry for the bad english)
 
In Jeremy <[email protected]> posted a question
Then Kevin replied below:
: "Ace Fekay [MVP]"
: <PleaseSubstituteMyActualFirstName&[email protected]> a écrit
: dans le message de news: (e-mail address removed)...
:: In :: Jeremy <[email protected]> posted their thoughts, then I offered mine
::: Thanks for your answer.
::: I cannot post the real domain name, sorry.
:::
::: nslookup
::: server ns1.cisco.com
::: set q=mx
::: very-long-domain.com
:::
::: result :
::: Non-authoritative answer:
::: very-long-domain.com MX preference=10, mail
::: exchanger=mail.very-long-domain.com
::: Authoritative answer can be found from:
::: ...ns1...
::: ...ns2...
::: mail.very-long-domain.com A internet (IPv4)
::: address=212.182.XXX.XXX
:::
::: So I really do not understand why e-mails don't go to the right
::: server (212.182.XXX.XXX)...
::: When I send an e-mail to (e-mail address removed), I get a
::: mailer-deamon message from the other server (66.192.XXX.XXX) telling
::: me that he doesn't know this domain (which is obviously normal).
:::
::: Jeremy
:::
::: "Deji Akomolafe" <[email protected]> a écrit dans le message de
::: news: (e-mail address removed)...
:::: nslookup
:::: server ns1.cisco.com
:::: set q=mx
:::: very-long-domain.com
::::
:::: Who is listed there? I bet it's 66.192.XXX.XXX and not
:::: 212.182.XXX.XXX
::::
:::: Don't be shy about posting your real domain name, unless there is
:::: an internal rule prohibiting that. It helps people help you
:::: better, IMO.
::::
:::: --
:::: Sincerely,
::::
:::: Dèjì Akómöláfé, MCSE MCSA MCP+I
:::: www.akomolafe.com
:::: www.iyaburo.com
:::: Do you now realize that Today is the Tomorrow you were worried
:::: about Yesterday? -anon
:::: ::::: Hello,
:::::
::::: I have a problem with DNS server on Windows 2000 Server.
:::::
::::: I don't receive e-mails on the correct server.
::::: Example with "very-long-domain.com":
::::: ; Zone Records
::::: @ A 66.192.XXX.XXX
::::: @ MX 10 mail.very-long-domain.com.
::::: ftp CNAME very-long-domain.com.
::::: mail A 212.182.XXX.XXX
::::: www CNAME very-long-domain.com.
:::::
::::: E-mails are received by 66.192.XXX.XXX whereas they should be
::::: received by 212.182.XXX.XXX. Do you know how is it possible?? I
::::: specify that when I go to http://mail.very-long-domain.com, I got
::::: an answer from the right server (I mean the Web is OK, my problem
::::: is just with the e-mail).
:::::
::::: Thanks in advance for your help !
:::::
::::: Jeremy
::
:: Can you try the nslookup from a machine outside of your network?
::
:: You can also check your domain records at:
:: dnsstuff.com
:: dnsreport.com
::
:: Unless since you are internal, and you have a split-horizon zone and
:: you manually created the record with the 66. address.
:
: OK, I give you the exact domain name :
: harvestbirdhouse.com
:
: You can try to send an e-mail to (e-mail address removed), you'll
: see that is not the correct server who answers...
: Thanks again :)
:
: Jeremy (and sorry for the bad english)
Getting MX record for harvestbirdhouse.com... Got it!

Host Preference IP(s) [Country]
mail.harvestbirdhouse.com. 10 213.186.46.49 [FR]


This is where the public record says to send mail.
Take a look at this: http://www.dnsreport.com/tools/dnsreport.ch?domain=harvestbirdhouse.com

--
Best regards,
Kevin D4 Dad Goodknecht Sr. [MVP]
Hope This Helps
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"Kevin D. Goodknecht [MVP]" <[email protected]> a écrit dans le message
de #[email protected]...
In Jeremy <[email protected]> posted a question
Then Kevin replied below:
: "Ace Fekay [MVP]"
: <PleaseSubstituteMyActualFirstName&[email protected]> a écrit
: dans le message de news: (e-mail address removed)...
:: In :: Jeremy <[email protected]> posted their thoughts, then I offered mine
::: Thanks for your answer.
::: I cannot post the real domain name, sorry.
:::
::: nslookup
::: server ns1.cisco.com
::: set q=mx
::: very-long-domain.com
:::
::: result :
::: Non-authoritative answer:
::: very-long-domain.com MX preference=10, mail
::: exchanger=mail.very-long-domain.com
::: Authoritative answer can be found from:
::: ...ns1...
::: ...ns2...
::: mail.very-long-domain.com A internet (IPv4)
::: address=212.182.XXX.XXX
:::
::: So I really do not understand why e-mails don't go to the right
::: server (212.182.XXX.XXX)...
::: When I send an e-mail to (e-mail address removed), I get a
::: mailer-deamon message from the other server (66.192.XXX.XXX) telling
::: me that he doesn't know this domain (which is obviously normal).
:::
::: Jeremy
:::
::: "Deji Akomolafe" <[email protected]> a écrit dans le message de
::: news: (e-mail address removed)...
:::: nslookup
:::: server ns1.cisco.com
:::: set q=mx
:::: very-long-domain.com
::::
:::: Who is listed there? I bet it's 66.192.XXX.XXX and not
:::: 212.182.XXX.XXX
::::
:::: Don't be shy about posting your real domain name, unless there is
:::: an internal rule prohibiting that. It helps people help you
:::: better, IMO.
::::
:::: --
:::: Sincerely,
::::
:::: Dèjì Akómöláfé, MCSE MCSA MCP+I
:::: www.akomolafe.com
:::: www.iyaburo.com
:::: Do you now realize that Today is the Tomorrow you were worried
:::: about Yesterday? -anon
:::: ::::: Hello,
:::::
::::: I have a problem with DNS server on Windows 2000 Server.
:::::
::::: I don't receive e-mails on the correct server.
::::: Example with "very-long-domain.com":
::::: ; Zone Records
::::: @ A 66.192.XXX.XXX
::::: @ MX 10 mail.very-long-domain.com.
::::: ftp CNAME very-long-domain.com.
::::: mail A 212.182.XXX.XXX
::::: www CNAME very-long-domain.com.
:::::
::::: E-mails are received by 66.192.XXX.XXX whereas they should be
::::: received by 212.182.XXX.XXX. Do you know how is it possible?? I
::::: specify that when I go to http://mail.very-long-domain.com, I got
::::: an answer from the right server (I mean the Web is OK, my problem
::::: is just with the e-mail).
:::::
::::: Thanks in advance for your help !
:::::
::::: Jeremy
::
:: Can you try the nslookup from a machine outside of your network?
::
:: You can also check your domain records at:
:: dnsstuff.com
:: dnsreport.com
::
:: Unless since you are internal, and you have a split-horizon zone and
:: you manually created the record with the 66. address.
:
: OK, I give you the exact domain name :
: harvestbirdhouse.com
:
: You can try to send an e-mail to (e-mail address removed), you'll
: see that is not the correct server who answers...
: Thanks again :)
:
: Jeremy (and sorry for the bad english)
Getting MX record for harvestbirdhouse.com... Got it!

Host Preference IP(s) [Country]
mail.harvestbirdhouse.com. 10 213.186.46.49 [FR]


This is where the public record says to send mail.
Take a look at this:
http://www.dnsreport.com/tools/dnsreport.ch?domain=harvestbirdhouse.com

Yes, thank you.
But if you send an e-mail to (e-mail address removed), you'll have an
answer from 213.186.39.52 whereas it should be 213.186.46.49.
Do you understand ?
Jeremy.
 
J> OK, I give you the exact domain name :
J> harvestbirdhouse.com

There is no 66.192.*.* IP address involved here. However, IP address for SMTP
Relay service for mailboxes in "harvestbirdhouse.com." is different to the IP
address for other services:

[C:\]dnsgetmx harvestbirdhouse.com.
213.186.46.49
[C:\]dnsgeta harvestbirdhouse.com.
213.186.39.52
[C:\]
 
J> But if you send an e-mail to (e-mail address removed), you'll
J> have an answer from 213.186.39.52 whereas it should be 213.186.46.49.

If I were to send mail to that mailbox, it would be sent to
the SMTP Relay server listening on 213.186.46.49.

[C:\]dnsgetmx harvestbirdhouse.com.
213.186.46.49
[C:\]

Where any replies to my message come from is an entirely different
matter that is unrelated to either DNS service or SMTP Relay service.
 
OK I found the solution !
In fact I was using 213.186.39.52 as SMTP, i.e. the same machine where the
Web is hosted. So this SMTP was searching in his local mail domains and
found "harvestbirdhouse.com" in them...
So I deleted the mail domain "harvestbirdhouse.com" on 213.186.39.52, and it
works!

Thanks again for you help.

Sincerely,
Jeremy
 
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