Retrieves the mail quarantine for a specific customer tenant.
The Get-CIPPMailQuarantine function retrieves the mail quarantine for a specific customer tenant by making a REST API call to the "/api/listmailquarantine" endpoint.
The ID of the customer tenant for which to retrieve the mail quarantine.
PS > Get-CIPPMailQuarantine -CustomerTenantID "contoso.onmicrosoft.com"