Still receive email from deleted DNS domain.

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Microsoft Exchange
Hi, I have an Exchange 2000 server. I'm having a problem in that I changed my DNS domain name and thought I've taken the right steps but apparantly I'm still receiving email to this old domain name via inbound SMTP. I've removed the MX record from DNS, taken olddomain.com out of the default recipient policy, removed any occurance of olddomain.com from all users and group email address's. Although the email isn't getting delivered to the end user I can tell the exchange server is receiving for olddomain.com because I see the NDR get sent back. The way I'm testing this is by telneting to {server ip address} 25. Then sending an email to bob@olddomain.com. It always succeeds. I've rebuilt the recipient policies, rebooted the server, but still no good. Another point is that I'm running GFI mail essentials for SPAM protecting. Thx.

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Thanks. We'll let you know when a new response is added.

The fact that you are still receiving emails from outside your organization says that your servers are not the problem. Remember that when it comes to DNS, any changes need to be propagated around the entire World! This takes time, up to 5 days in some cases. Anything that goes on longer than that are going to be be smaller entities that do not update their servers on a very timely basis.

The only solution is to wait it out.
Dave

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  • Nfeliciano
    I agree with Dave. Propagation is needed at the root server level to allow for the change to reflect in other parts of the world. This process usually takes about 72 hours, in some cases longer, for the root servers to be updated with the domain info. Try testing your MX records from an external site, such as dnsstuff.com and see what the outside world is recognizing as your MX records.
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