Request to rename Email Address

Rajendran Chinnakulanthai 20 Reputation points
2026-10-09T15:28:32.09+00:00

Hi

Dear Support Team,

I recently signed up for a free trial, but my account was created with a different email address than intended. I received the email address [Moderator note: Personally Identifiable Information removed] @smartelvtech.onmicrosoft.com, whereas I would like it to be [Moderator note: Personally Identifiable Information removed] @smartelvtech.com.

Could you please advise me on how to rename or update my email address to the correct one? Thank you for your assistance.

Best regards,

Rajen

Microsoft 365 and Office | Subscription, account, billing | For business | Other
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Answer accepted by question author
Chris-D 2,100 Reputation points Independent Advisor
2026-10-09T15:46:23.62+00:00

Hi Rajendran, 

Thank you for sharing about your situation. 

When a new Microsoft 365 tenant is created, Microsoft automatically provides an initial domain in the following format: tenantname.onmicrosoft.com 

If you would like to use @smartelvtech.com, first make sure that you own this domain and have access to its DNS settings through your domain registrar or hosting provider. 

If you do not own smartelvtech.com, you will first need to purchase or obtain administrative access to the domain through a domain registrar before it can be added to Microsoft 365. 

Once confirmed, you can add it to Microsoft 365 as a custom domain by following these steps: 

  1. Sign in to the Microsoft 365 Admin Center with your admin account.  
  2. Go to Settings > Domains > Add domain. 
  3. User's image
  4. Enter smartelvtech.com and follow the prompts to verify domain ownership. 
  5. Add or update the required DNS records through your domain provider. 
  6. Once the domain has been successfully verified, go to Users > Active users. 
  7. Select your account and update the username and primary email address from @smartelvtech.onmicrosoft.com to @smartelvtech.com. 

After the change, sign out and sign back in using the updated address.  

Kindly note that the original onmicrosoft.com domain will normally remain associated with the tenant, even after your custom domain has been added. 

You can also refer to the following Microsoft guidance: 

I hope this information is helpful. Should you have any further questions or need additional assistance, please feel free to share them in the comment below. I'm very happy to help.  

If the answer is helpful, please click 'Yes' and kindly upvote it.  

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  1. AI answer

    2026-10-09T15:28:45.3033333+00:00

    For a Microsoft 365 business account, changing ******@tenant.onmicrosoft.com to ******@company.com is an admin task.

    1. Confirm that smartelvtech.com is added to the Microsoft 365 tenant as a domain.
    2. In the Microsoft 365 admin center, go to Users > Active users.
    3. Select the user.
    4. On the Account tab, select Manage username and email.
    5. Edit the Username and select the correct domain smartelvtech.com.
    6. Select Done or Save changes.

    Requirements and notes:

    • An appropriate admin role is required, such as User administrator.
    • If the custom domain is not available in the Domains list, it must be added to Microsoft 365 first.
    • If this is a business user account and admin access is not available, the organization’s Microsoft 365 administrator must make the change.
    • If the goal is only to add another address, an email alias can also be added.
    AI-generated content may be incorrect. Read our transparency notes for more information.

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