Question

Exchange move errors

Asked by: josh-gray

My one stupid question for the day. :)

We have two companies (A and B) that were both housed in the same location, under the same public ip.

We sold business B and moved all the servers out.  Had MX records changed, etc. so everything worked.  However, now when trying to email anyone at that company B domain from within the Company A network, it won't go.

I have given plenty of time for everything to migrate to the new addressing of company B's new home.  And everything else works.  I can email them from anywhere else also.

What did I overlook at Company A that is causing the failed delivery?

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Asked On
2009-10-22 at 08:11:48ID24834833
Tags

exchange

,

mail error

,

mail delay

Topics

Exchange Email Server

,

Simple Mail Transfer Protocol (SMTP)

,

Computer Servers

Participating Experts
2
Points
500
Comments
3

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Answers

 

by: demazterPosted on 2009-10-22 at 08:20:55ID: 25635242

Do you have any records in your internal DNS relating to the old domain/company?

How were the exchange servers configured?
Do you have any old connectors configured to send any mail destined for the other organisation to the internal address of the other exchange server?

 

by: cmccallPosted on 2009-10-22 at 08:36:05ID: 25635439

Your message is queued on the server.  Go to your exchange bridghead (the server responsible for sending mail out of your org) and look up what it believes the MX record to be.  From cmd prompt,

nslookup
set type=mx
CompanyB.com

Is the MX record what you expected it to be?  Is the IP that corresponds to this MX record what you expect it to be?  Can you telnet to port 25 of the MX record?

 

by: josh-grayPosted on 2009-10-22 at 10:14:31ID: 31644571

Thanks...it's always just a matter of having a second set of eyes looking.

I still had references to it in our DNS server as you stated.  Once I removed the references, the mail immediately went.

Thanks again.

20120131-EE-VQP-002

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