docs/operations/reference/powershell/azure/check-email-aliases.md

!!! info "Prerequesite: Connect to Azure AD"

The uppercase SMTP address is the primary address, while lowercase smtp are aliases. You can find the value in active directory in "User > Attribute Editor > proxyAddresses".

Get-AzureADUser -ObjectId "user@domain.com" | Select -Property ProxyAddresses

!!! example "Example Output" powershell smtp:alias@domain.com smtp:alias@domain.onmicrosoft.com SMTP:primaryaddress@domain.com