Additional settings-related features and issues within Microsoft Teams for business
Hi Mohamed,
Thank you for sharing your concern.
If your current email address ends with onmicrosoft.com, the existing domain name generally cannot be edited directly. To use a shorter address such as ******@companyname.com, you will need to own the custom domain and add it to your Microsoft 365 account.
If you already own the domain, a Microsoft 365 administrator can:
- Sign in to the Microsoft 365 Admin Center.
- Go to Settings > Domains.
- Select Add domain and follow the prompts to verify the domain.
- After the domain is set up, go to Users > Active users.
- Select the affected user and change the username and primary email address to the new domain.
Kindly note that changing the primary email address may also change the username used to sign in to Microsoft 365. The original address can usually be retained as an alias so that messages sent to it will continue to arrive.
If you do not yet own the preferred domain, you will first need to purchase it from a domain registrar before adding it to Microsoft 365.
For detailed instructions, you may find these articles helpful:
- Add a custom domain to Microsoft 365
- Change your Microsoft 365 email address to use your custom domain
- Connect your domain by adding DNS records
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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