MS 365 Business - Setting up Email with Custom Domain - Stuck on Loading Screen

Ruramai Magondo 20 Reputation points
2026-10-30T07:15:41.56+00:00

I am setting up email with a custom domain using a MS 365 Business Basic account. I have full access of the MS 365 admin center. When I select "Set up email with a custom domain", then select "Use a domain you already own" I get stuck with a loading screen that does not progress anywhere. Has anyone experienced this before. How do I get past this point.

Microsoft 365 and Office | Subscription, account, billing | For business | Other
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AI answer

2026-10-30T07:16:01.0833333+00:00

Try the setup from a different entry point and then check domain health if it still hangs:

  1. In the Microsoft 365 admin center, go to Settings > Domains and select Add domain.
    • This uses the standard custom domain flow for adding a domain you already own.
    • If the registrar supports Domain Connect, Microsoft 365 can automatically confirm ownership and add the required DNS records.
    • If not, sign in to the registrar and add the DNS records manually.
  2. If the setup wizard is available from Setup, try Setup > Domains and review the Status column.
    • If there is an issue, select the three dots (more actions) and then Check health.
    • The pane shows which DNS records are missing or incorrect.
  3. If domain verification is where the process is actually failing, check these common causes:
    • The TXT verification record value is not exact.
    • The MS= part of the TXT record was omitted.
    • The DNS record was added but not saved at the DNS host.
    • The DNS change has not propagated yet; this can take a few minutes and sometimes a few hours.
  4. Before switching mail flow, make sure mailboxes are created in Microsoft 365 for all users on that domain.
    • Changing the MX record sends mail for that domain to Microsoft 365.
    • If mailboxes are not ready first, email delivery can be interrupted.
  5. Confirm permissions.
    • To add, modify, or remove domains, the required role is Domain Name Administrator on a business or enterprise plan.
    • Some domain-change steps also require a Global admin.
  6. If the goal is only to use Microsoft 365 apps and not branded email yet, a custom domain is not required immediately. The tenant can continue using the default onmicrosoft.com address until the domain setup issue is resolved.

If the page only hangs on Set up email with a custom domain, using Settings > Domains > Add domain is the most direct supported path.

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