Sending, receiving, and organizing email in Outlook.com
If the Outlook.com account is blocked, use the Sign-in Helper to start the unblock process:
- Open Sign-in Helper.
- Complete the verification steps, such as entering the security code or changing the password if prompted.
If the account still cannot be unblocked:
- Go to When you can't sign in to your Microsoft account.
- That flow includes password reset guidance, help if password reset does not work, and a way to contact support.
Also check whether the mailbox or OneDrive storage is full. If either is full, Outlook.com cannot send or receive email.
If the issue is specifically that the sign-in name was turned off, sign in with another alias that is still allowed for sign-in:
- Select Forgot your username?
- Enter the alias being used.
- Retrieve the code sent to the primary alias.
- Use one of the aliases shown that is allowed for sign-in.
If more help is needed, use Outlook.com support or the Microsoft account support options provided in the support pages.