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cannot send emails to one domain

Posted on 2009-05-05
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Last Modified: 2012-05-06
Hello,
I have a problem with one domain.
I cannot send emails to *@pdvsa.com
I have 2 DNS server, but this zone is just installed on the second DNS server as primary zone.

Do you know why ?
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Question by:Eprs_Admin
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LVL 6

Expert Comment

by:ilantz
ID: 24303526
if you hold the zone in your dns.. and you mail server queries your dns servers , then it's obvious to create a correct MX record in that zone..

hope this helps
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Author Comment

by:Eprs_Admin
ID: 24304051
The mx record is in that zone.
mail.pdvsa.com
Prio 10

But why I cannot ping or resolve this ip ?
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LVL 6

Expert Comment

by:ilantz
ID: 24304067
if you query your second dns server , the one with the pdvsa.com zone in it , you fail to receive an answer ?

nslookup mail.pdvsa.com 2ndserver.com
nslookup -q=mx pdvsa.com. 2ndserver.com

these doesnt respond with an answer ?
you should verify that the correct dns server is first in priority & that you ipconfig /flushdns first .
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Author Comment

by:Eprs_Admin
ID: 24304147
Both,

nslookup mail.pdvsa.com 2ndserver.com
nslookup -q=mx pdvsa.com. 2ndserver.com

is working.
But when I put nslookup mail.pdvsa.com 1stserver.com then I get an error.

What is the problem ?
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LVL 6

Expert Comment

by:ilantz
ID: 24304177
you should either configure 1stserver.com to host the zone also , or configure Contitional Forwarding for the pdvsa.com domain on 1stserver.com. that is forward request for this domain to a specific server.. 2ndserver.com :)

here's a nice how-to conditional forwarding

http://www.windowsnetworking.com/articles_tutorials/DNS_Conditional_Forwarding_in_Windows_Server_2003.html - How to Configure Conditional Forwarding

let me know this works..
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Author Comment

by:Eprs_Admin
ID: 24304205
ok or is it better to delete the zone on dns2?
And create a new activedirectoryintegrated primary and secondary zone for pdvsa.com?

George
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LVL 6

Expert Comment

by:ilantz
ID: 24304215
well, yea that would of course work.
i didn't want to force you to change anything :)

but if you do want that zone to be replicated and as secure as it gets - AD integrated is the way to go.
as long as you solve your issue.
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Author Comment

by:Eprs_Admin
ID: 24304254
ok, about your solution.
I have configured the forwarders.
But this will not work here.

I have entered the doamin : pdvsa.com and the IP of it.
But I cannot resolve it.

Can this happen, because this zone is just installed on DNS2 and is not replicating to DNS1 ??
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Accepted Solution

by:
ilantz earned 500 total points
ID: 24304273
the ip in the conditional forwarding should be the ip of 2ndserver.com.
and you configure conditional forwarding on 1stserver.com.

that is the purpose of DNS forwarding. a dns server forwards requests for zones it is not authoritative for.
conditional forwarding allows you to forward requests for specific domains (zones).
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Author Closing Comment

by:Eprs_Admin
ID: 31577960
Its working now. Thanks.
George

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