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After trust domain email routing
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After trust domain email routing - 26.Mar.2012 3:47:24 AM
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arvinwong
Posts: 7
Joined: 26.Mar.2012
Status: offline
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I have two different domain
Domain One have exchange 2007
Domain Two do not have exchange
domain two is using google apps mail services.
After trust domain, domain two DNS record copy to domain one
If the user send email form domain one exchange to domain two address.
Is will have problem
exchange will send the email to wrong address.
May i know have any solution to fix this issue?
Thank You
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RE: After trust domain email routing - 26.Mar.2012 4:51:46 AM
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Gulab
Posts: 646
Joined: 31.Jul.2008
From: India
Status: offline
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Your question is not clear! What is the issue you are having.
Provide little detail information.
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Gulab Prasad,
Technology Consultant
Exchange Ranger
Check out CodeTwo’s tools for Exchange admins
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RE: After trust domain email routing - 26.Mar.2012 9:32:20 PM
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arvinwong
Posts: 7
Joined: 26.Mar.2012
Status: offline
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i have two dc host different domain
like one.com two.com
two.com is in over sea office do not have exchange server to send mail
so using google apps mail serivce to send mail
between two domain network is link up in VPN
one.com in 10.1.0.0/24 two.com in 10.2.0.0/24
when i make a trust relation between this two domain
two.com DNS will copy to one.com DNS server
when one.com user want to send mail to user@two.com
the exchange server will reply said this email will delay.
Then can find the email hold in queue wait to send out.
The reason of delay because can't email domain address not right.
The exchange using the one.com DNS try to send the email to 10.2.0.0 subnet, but there do not have any mail server
How can i to set the email when sending to two.com
will forward out to google apps mail server?
< Message edited by arvinwong -- 26.Mar.2012 9:33:53 PM >
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RE: After trust domain email routing - 27.Mar.2012 9:32:22 AM
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uemurad
Posts: 8232
Joined: 7.Jan.2004
From: California, USA
Status: offline
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Is there a particular reason why you want mail from one.com to two.com to be routed across the VPN link instead of allowing it to be routed across the Internet? If two.com is hosted by Google, the mail will eventually have to be routed to the Internet anyway.
Also, is the AD domain name the same as the SMTP domain name for two.com?
_____________________________
Regards,
Dean T. Uemura
Microsoft MVP - Exchange (2007-2011)
exchangeguy.blogspot.com
uemurad@yahoo.com
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RE: After trust domain email routing - 27.Mar.2012 8:23:05 PM
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arvinwong
Posts: 7
Joined: 26.Mar.2012
Status: offline
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Yes, you are right
the domain two domain name is domaintwo.com
so the exchange will routed to private ip to domaintwo.com
How can i fix it.
Thank You
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RE: After trust domain email routing - 28.Mar.2012 12:54:08 AM
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uemurad
Posts: 8232
Joined: 7.Jan.2004
From: California, USA
Status: offline
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Please explain your requirement to route the Email across the private network. Why don't you want to route the Email across the public Internet?
I ask because your environment has been complicated by the fact that your AD domain has the same name as your registered domain.
_____________________________
Regards,
Dean T. Uemura
Microsoft MVP - Exchange (2007-2011)
exchangeguy.blogspot.com
uemurad@yahoo.com
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RE: After trust domain email routing - 28.Mar.2012 2:08:48 AM
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arvinwong
Posts: 7
Joined: 26.Mar.2012
Status: offline
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Maybe i said it very confusion
Let me explain about all my problem again
i have two DC in different network link up by VPN
Using private ip in network
domainone.com using 10.1.0.0 /24 have exchange2007
domaintwo.com using 10.2.0.0 /24 using google app mail
domaintwo.com using domaintwo.com for mail domain in google apps mail
Before i setup the trust relation.
If user send email from domainone.com network to domaintwo.com email is no problem.
If i use NSLOOKUP set q=mx to check domaintwo.com MX record
will display ALT2.ASPMX.L.GOOGLE.com
After i make a trsut relation domainone.com and domaintwo.com
all email send from domainone.com to domaintwo.com will hold in exchange queue said the address wrong.
I think the problem is domainone.com DNS have domaintwo.com private address, so the exchange use this record to find the domaintwo.com.
How can i make the exchange get the correct MX record
Thank You.
< Message edited by arvinwong -- 28.Mar.2012 2:10:03 AM >
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RE: After trust domain email routing - 28.Mar.2012 9:22:31 AM
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uemurad
Posts: 8232
Joined: 7.Jan.2004
From: California, USA
Status: offline
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Thank you for explaining. That confirms my understanding of your situation. You are getting the MX record from the public DNS for domaintwo.com. If you allowed that mail to route across the public Internet, it would get to your other system just as any mail I attempted to send would do. Did you create an Exchange route that attempts to force mail across the private network (directly to 10.2.x.x)?
Had your AD domain been named differently than the registered domain you wouldn't have this situation because then DNS would resolve the AD domain separately.
_____________________________
Regards,
Dean T. Uemura
Microsoft MVP - Exchange (2007-2011)
exchangeguy.blogspot.com
uemurad@yahoo.com
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RE: After trust domain email routing - 28.Mar.2012 8:16:21 PM
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arvinwong
Posts: 7
Joined: 26.Mar.2012
Status: offline
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Yes , how can i force to get domaintwo.com MX form public network?
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RE: After trust domain email routing - 29.Mar.2012 12:34:03 AM
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uemurad
Posts: 8232
Joined: 7.Jan.2004
From: California, USA
Status: offline
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The problem with that is there are likely entries you need to get from the private DNS. Have you attempted to change the MX record for your private DNS to point to the public IP address instead?
What's your long-term goal for Active Directory? Are you planning to join the two forests together?
_____________________________
Regards,
Dean T. Uemura
Microsoft MVP - Exchange (2007-2011)
exchangeguy.blogspot.com
uemurad@yahoo.com
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RE: After trust domain email routing - 29.Mar.2012 2:12:32 AM
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arvinwong
Posts: 7
Joined: 26.Mar.2012
Status: offline
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I don't know how to point from private to public
because i can't found MX record in domainone.com DNS
only CNAME and host record
domainone is local company, domaintwo is oversea sub company
we have some services need to use in two company, so need to make a trust relation
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RE: After trust domain email routing - 29.Mar.2012 9:59:32 AM
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uemurad
Posts: 8232
Joined: 7.Jan.2004
From: California, USA
Status: offline
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You said in your orginal post:quote:
After trust domain, domain two DNS record copy to domain one Please explain what you are seeing for DNS records to domaintwo and where you are seeing them.
Perform the following command and tell me if you are getting a public or private address in response:
nslookup -q=mx domaintwo.com
_____________________________
Regards,
Dean T. Uemura
Microsoft MVP - Exchange (2007-2011)
exchangeguy.blogspot.com
uemurad@yahoo.com
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RE: After trust domain email routing - 29.Mar.2012 10:18:53 PM
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arvinwong
Posts: 7
Joined: 26.Mar.2012
Status: offline
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In domainone.com DNS server created a new secondary zone
in domaintwo.com zone only host record
This is before trust
Default Server: dc1.domainone.com
Address: 10.2.0.10
> set q=mx
> domaintwo.com
Server: dc1.domainone.com
Address: 10.2.0.10
Non-authoritative answer:
domaintwo.com MX preference = 30, mail exchanger = ALT2.ASPMX.L.GOOGLE.com
domaintwo.com MX preference = 40, mail exchanger = ASPMX2.GOOGLEMAIL.com
domaintwo.com MX preference = 50, mail exchanger = ASPMX3.GOOGLEMAIL.com
domaintwo.com MX preference = 10, mail exchanger = ASPMX.L.GOOGLE.com
domaintwo.com MX preference = 20, mail exchanger = ALT1.ASPMX.L.GOOGLE.com
This is after trust
Default server: dc1.domainone.com
address: 10.2.0.10
>set q=mx
>domaintwo.com
domaintwo.com
primaryname server = dc2.domaintwo.com
respoinsible mail addr = hostmaster
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RE: After trust domain email routing - 30.Mar.2012 8:18:36 AM
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uemurad
Posts: 8232
Joined: 7.Jan.2004
From: California, USA
Status: offline
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The resolution to your issue involves the creation of a Split DNS.
_____________________________
Regards,
Dean T. Uemura
Microsoft MVP - Exchange (2007-2011)
exchangeguy.blogspot.com
uemurad@yahoo.com
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