NDR issue in outlook

One of our user receivng following user when user is sending mail. Kindly help

Your message did not reach some or all of the intended recipients.

      Subject:  RE: test mail

The following recipient(s) could not be reached:

     <user> on 30/03/2009 08:37
            The message reached the recipient's e-mail system, but delivery was refused.  Attempt to resend the message.  If it still fails, contact your system administrator.
            <my.com #5.2.1>

I have remove domian name and receipent name due to security

Please let me know if you require more info on this.
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Is the destination email address outside of your organization?  What happens if another user sends an email to the same address?  

Does this previous solution address your issue?  http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/Q_23428720.html  
sudheendra2001Author Commented:
It is inside the organization and found user is disabled.
Then you have option for enabling the account right?
Creating Active Directory Users from a Text File

If your organization has a need to mass-create AD user accounts, watch this video to see how its done without the need for scripting or other unnecessary complexities.

sudheendra2001Author Commented:
No i dont have right as it is done by other. We dont want NDR's like this if account is disabled
This issue occurs because the disabled account does not have the msExchMasterAccountSid attribute. When an account is disabled, this field must be populated with a Windows NT Security Identifier (SID). At a minimum, the well-known SELF SID must be in the attribute.  

If you require procedure let me know

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sudheendra2001Author Commented:
Thanks rocket

we had this because of Associated external account, removed after taking the self permission and refreshed the dscache sent mail.

no longer generate NDRs
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