Signed PowerShell module to
- lookup a domain name and return the associated Entra ID (Azure Active Directory) Tenant ID
- query ExchangeOnline for Registered Domains
- Queries the 'Well-Known' Entra ID (Azure AD) Open ID Connect (OIDC) Authorization Endpoint using a domain name and returns the TenantId
- Queries the Exchange Online Autodiscovery service using a domain name and returns all other registered domains.
- Aliases for new Entra ID naming Get-AzureADTenantId == Get-EntraIDTenantId AND Get-AzureADCustomDomains == Get-EntraIDCustomDomains
- Works with Windows PowerShell and PowerShell (6.x+)
Install from the PowerShell Gallery on Windows PowerShell 5.1+ or PowerShell Core 6.x or PowerShell.
Install-Module -name AzureADTenantID
Get-AzureADTenantId -domain 'microsoft.com'
or
Get-EntraIDTenantId -domain 'microsoft.com'
or
'microsoft.com' | Get-AzureADTenantId
or
'microsoft.com' | Get-EntraIDTenantId
Exchange Online Domains (which usually infers EntraID (AAD) custom domains so that email and UPN matches for users.)
Defaults to WW Cloud
Get-AzureADCustomDomains -domain 'microsoft.com'
or
Get-EntraIDCustomDomains -domain 'microsoft.com'
For GCC-H use the -GCCH switch
Get-AzureADCustomDomains -domain 'microsoft.com' -GCCH
or
Get-EntraIDCustomDomains -domain 'microsoft.com' -GCCH
or
'microsoft.com' | Get-AzureADCustomDomains
or
'microsoft.com' | Get-EntraIDCustomDomains
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