Cannot verify customer domain name

Question

Cannot verify customer domain name

John T 40

I have gone thru the steps of adding a custom TXT DNS entry for Custom Domain Name verification using Entra ID.
Despite running nslookup and verifying the custom DNS entry, when verifying thru Entra ID/Default Directory -> Manage -> Custom domain names -> <select> -> Verify (button).... it always fails

It has been over 24 hours since creating DNS entry

BTW Azure AD or Azure Entra ID is not available as a child tag necessary for question submittal

Edited to replace customer with custom

</select>

Rukmini 42,850 Reputation points Microsoft External Staff Moderator

2025-12-02T19:11:39.7966667+00:00

Hello John T,

Based on your description, it seems that you are unable to verify your custom domain in your Entra ID tenant, even after correctly adding the TXT records in Domain DNS settings.

This issue often occurs when the domain has already been verified in another Entra directory, as explained in the following document:

Common verification issues

First, let's check if your custom domain has already been verified in another Entra directory. You can do this by entering your domain name in the following URL to retrieve the tenant ID where it is verified:

https://www.whatismytenantid.com/

Once you have the tenant ID, verify whether it belongs to your tenant. If the tenant ID is different and you do not own that directory, the only option is to contact the Data Protection team via a support ticket to request the removal of the domain verification from the existing Entra ID tenant. After the removal, you should be able to verify the domain in your tenant without any issues.

To involve Data Protection team via a support ticket, I need a few details from you. As this information contains Personally Identifiable Information (PII), please share the following details via private message:

Custom domain Name:

Your tenant ID:

Contact Email address:

Contact Phone Number:

Country

TimeZone

Once you send me these details via private message, we can connect offline to discuss further and assist you in resolving this issue.

1 answer

Your answer

Rukmini 42,850 Reputation points Microsoft External Staff Moderator

2025-12-02T19:11:39.7966667+00:00

Hello John T,

Based on your description, it seems that you are unable to verify your custom domain in your Entra ID tenant, even after correctly adding the TXT records in Domain DNS settings.

This issue often occurs when the domain has already been verified in another Entra directory, as explained in the following document:

Common verification issues

First, let's check if your custom domain has already been verified in another Entra directory. You can do this by entering your domain name in the following URL to retrieve the tenant ID where it is verified:

https://www.whatismytenantid.com/

Once you have the tenant ID, verify whether it belongs to your tenant. If the tenant ID is different and you do not own that directory, the only option is to contact the Data Protection team via a support ticket to request the removal of the domain verification from the existing Entra ID tenant. After the removal, you should be able to verify the domain in your tenant without any issues.

To involve Data Protection team via a support ticket, I need a few details from you. As this information contains Personally Identifiable Information (PII), please share the following details via private message:

Custom domain Name:

Your tenant ID:

Contact Email address:

Contact Phone Number:

Country

TimeZone

Once you send me these details via private message, we can connect offline to discuss further and assist you in resolving this issue.

Answer 1

Rukmini 42,850 Microsoft External Staff Moderator

Hello John T,

The issue relates to an unable to verify custom domain name as it is verified in different directory in Azure.

To resolve this, we have engaged our Data Protection team through a support ticket. They will reach out to you via email or phone to help restore access to the tenant and assist in resolving the issue.

If the resolution was helpful, kindly take a moment to accept the answer and upvote it 👍 it as a token of appreciation.

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Cannot verify customer domain name

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