Microsoft Security | Microsoft Identity Manager
A tool for managing user identities, credentials, and access across on-premises and cloud environments
Unable to verify a custom domain
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Whoks
0
Reputation points
I am trying to add my own domain in Entra ID, but the verification fails and only shows a generic message without any useful information to help resolve the issue. I tried registering with both TXT and MX records. I have already checked propagation using nslookup and verification sites.
Microsoft Security | Microsoft Identity Manager
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Thanmayi Godithi 11,825 Reputation points Microsoft External Staff Moderator2026-05-07T12:50:00.8033333+00:00 Hello Whoks , 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 your domain provider side.
This issue often occurs when the domain has already been verified in another Entra directory, as explained in the following document: Common verification issues
To resolve this, the recommended approach is to contact the Microsoft Data Protection team. You can reach them by calling Microsoft Customer Service using the phone numbers listed here: Customer service phone numbers - Microsoft Support.
If it doesn't work for you, please don’t worry—let us know, we are happy to assist you further!
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Whoks 0 Reputation points
2026-05-08T09:29:21.9066667+00:00 The link leads to a "Page Not Found (404)" page.
Also, I tried to follow the steps from the video on this page, but it is impossible to log into my account.
According to the video, it is possible that someone—or even myself—may have created an "unmanaged account" simply by logging into some random Microsoft service with an email from my domain (viral tenant). If it is so simple to create this viral tenant, why isn’t there an equally simple way for me to prove that I own my domain and remove or override all these viral tenants?
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Thanmayi Godithi 11,825 Reputation points Microsoft External Staff Moderator
2026-05-08T16:13:03.6333333+00:00 Hi Whoks ,
Could you please share the details requested over Private message.
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Whoks 0 Reputation points
2026-05-15T20:16:48.6766667+00:00 I opened a ticket (Support request ID 2605120040002596) in the 'Help + Support' section of the Azure portal on May 12, but I also haven’t received any response. Is Microsoft support always this slow?
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Sina Salam 31,456 Reputation points Volunteer Moderator2026-05-18T15:21:54.44+00:00 Hello Whoks,
Welcome to the Microsoft Q&A and thank you for posting your questions here.
I understand that you are unable to verify your custom domain in Microsoft Entra ID despite correctly configuring DNS records.
The failure occurs because the domain is already associated with another Microsoft Entra tenant (managed or unmanaged), which prevents verification in your current tenant. Microsoft allows a domain to be verified in only one tenant at a time, regardless of correct TXT/MX records. - https://learn.microsoft.com/en-us/entra/fundamentals/add-custom-domain
The most reliable method is to:
- Confirm DNS TXT record is correct and publicly resolvable (e.g.,
nslookup -q=TXT yourdomain.com) - Identify if the domain exists in another tenant (common root cause)
- If accessible, remove the domain from the previous tenant
- If it is an unmanaged (“viral”) tenant, perform admin takeover
- If the tenant is inaccessible, escalate to Microsoft Support/Data Protection for domain release
- Retry verification after domain is released or removed
Once the domain is released from the previous tenant or successfully taken over, the verification in your target Entra tenant will complete successfully with no further DNS changes required. Use the below links for more reading and steps:
- Add and verify custom domain – Microsoft Entra
- Admin takeover of unmanaged directory
- Internal admin takeover guide
- Remove a domain from Microsoft 365
- Get support for Microsoft 365
I hope this is helpful! Do not hesitate to let me know if you have any other questions, steps or clarifications.
Please don't forget to close up the thread here by upvoting and accept it as an answer if it is helpful.
- Confirm DNS TXT record is correct and publicly resolvable (e.g.,
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Whoks 0 Reputation points
2026-05-19T09:30:19.32+00:00 How do I get in touch with Microsoft Data Protection?
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Whoks 0 Reputation points
2026-05-19T09:30:41.86+00:00 How do I get in touch with Microsoft Data Protection?
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Thanmayi Godithi 11,825 Reputation points Microsoft External Staff Moderator
2026-05-20T11:45:34.33+00:00 Hi Whoks ,
The backend team will reach out to you. I will also follow up with them and will keep you posted on the updates.
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Whoks 0 Reputation points
2026-05-25T11:48:38.2933333+00:00 I have received absolutely no response so far.
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Sina Salam 31,456 Reputation points Volunteer Moderator
2026-05-25T12:34:39.9533333+00:00 Hello @Whoks ,
Thank you for your feedback. The only way is through support channels.
You can use the below information with above to contact Microsoft Data Protection depends on the type of issue.
- If your issue is a privacy, GDPR, personal data access, correction, or deletion request: Use Microsoft's official Privacy Support portal: Microsoft Privacy Support and Requests This is the official channel for:
- Data Subject Requests (DSRs)
- GDPR rights requests
- Personal data access
- Data deletion requests
- Privacy complaints
- Contacting Microsoft's privacy team or Data Protection Officer (DPO) (Microsoft)
- Microsoft directs users to the privacy request process above. For EU privacy matters, Microsoft also publishes the EU DPO contact details through its privacy resources. The commonly published telephone number is: +353 1 706 3117 (Microsoft EU Data Protection Officer) (Microsoft Learn)
- If your issue is a Microsoft 365, Azure, Entra ID, or tenant access problem: Do not contact the privacy team directly. Open a Microsoft support case and request escalation to the Data Protection team if Microsoft support determines it is required. Official support entry point: Microsoft Support Contact Center For Microsoft 365 business tenants:
- Open a support request from the Microsoft 365 Admin Center.
- Provide tenant details and administrator verification information.
- Request escalation if the case involves administrator lockout, ownership verification, or tenant recovery. (Microsoft)
- If your issue is a privacy, GDPR, personal data access, correction, or deletion request: Use Microsoft's official Privacy Support portal: Microsoft Privacy Support and Requests This is the official channel for:
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