E2k3:Unable to bind to the destination server in dns (924251)

The information in this article applies to:

Microsoft Exchange Server 2003 Enterprise Edition
Microsoft Exchange Server 2003 Standard Edition

Source: Microsoft Support

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SYMPTOMS

Customer is having two exchange organization,One is running on with a single exchange 2003 server , Domain name-domainone.com and the other one is running on with a single exchange 2003 server, Domain name-domaintwo.com.

He created a zone entry for domaintwo.com records in domainone.com Internal primary DNS server.He specified domaintwo.com DNS ip address under domainone.com Internal primary DNS server's forwarders list to have name resolution locally.

When he send an email from user@domainone.com to user@domaintwo.com,mails are getting queued up in the sending server with the error "Unable to bind to destination server in DNS"

CAUSE

In domainone.com Internal primary DNS server,under the domaintwo.com zone entry MX record for domaintwo.com's exchange server contains servername under "Host or Domain" section and it should be blank.

RESOLUTION

In domainone.com Internal primary DNS server,deleted MX record for domaintwo.com's exchange server and recreated the MX record by leaving "Host or Domain" section as blank and the record will default to "same as parent folder".

MORE INFORMATION

Conditional Forwarding in Windows Server 2003 http://support.microsoft.com/default.aspx?scid=kb;en-us;308201&sd=tech
How to create a MX recordhttp://support.microsoft.com/default.aspx?scid=kb;en-us;308201&sd=tech

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Modification Type:	Minor	Last Reviewed:	10/6/2006
Keywords:	kbprb kbtshoot kbrapidpub KB924251 kbAudITPRO