Hi idit, you cannot remove the .onmicrosoft.com domain; it is automatically created when you first set up a Microsoft 365 tenant and will always remain as the default internal domain. To use your professional domain (e.g. @YMCmed.com) you need to add and verify it in the Microsoft 365 Admin Center. Go to Admin Center > Settings > Domains, add YMCmed.com, and follow the DNS verification steps provided (usually TXT record at your registrar). Once verified, you can set it as the primary domain and assign mailboxes to use that domain instead of the onmicrosoft one. The onmicrosoft address will still exist in the background, but you can hide it and only use your custom domain for email and login.
how can i renmove onmicrosoft from my domain name?
hi i joined microsoft business account
I trying to set my email as ******@YMCmed.com
but i got onlt ******@YMCmed.onmicrosoft.com which doesn't look proffesional...
how can i remove the onmicrosoft ?
Windows for business | Windows 365 Business
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Harry Phan 15,825 Reputation points Independent Advisor
2026-02-10T15:13:35.8066667+00:00 -
Q&A Assist2026-02-10T14:15:26.0266667+00:00 AI generated content. This question contains an answer created with AI from Q&A Assist. Learn moreYou cannot remove the "onmicrosoft.com" domain from your Microsoft 365 account. This domain is created automatically when you sign up for the service and is used behind the scenes for your subscription. However, you can add a custom domain (like YMCmed.com) and set it as the primary domain for your email addresses. Once you have added your custom domain, you can change your email address to use that domain instead of the onmicrosoft.com address.
To set up your email with your custom domain, follow these steps:
- Sign in to the Microsoft 365 admin center.
- Go to Settings > Domains and select Add domain.
- Follow the steps to verify ownership of your domain.
- Once verified, go to Users > Active users, select a user, and change their email address to the new domain.
After completing these steps, you will be able to use your professional email address without the onmicrosoft.com suffix.