@Godel Chen You can use below commands to identify the users who are using tahoho.com.tw domain name.
- Run
Connect-AzureAD
and sign-in using Global Administrator account. Then run below commands: - Get-AzureADUser | Where-Object {$_.UserPrincipalName -like "*tahoho.com.tw"}
- Get-AzureADUser | Where-Object {$_.mail -like "*tahoho.com.tw"}
- Get-AzureADUser | Where-Object {$_.ProxyAddresses -like "*tahoho.com.tw"}
You can run Get-AzureADGroup
with above filters to find the groups which are using tahoho.com.tw domain name in the mail or proxyaddresses attributes as well. You can update or remove the users/groups that are using the verified domain and try to remove verified domain using below cmdlet:
- Run
Connect-MsolService
and sign-in using Global Admin account. Then run below command: - Remove-MsolDomain -DomainName "tahoho.com.tw" -Force
If you still face any issues, try removing the verified domain from portal.office.com as it provides more error details than Azure Portal.
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