if ($RoleExternalCASServerDomain -ne $null) { $ExternalAutoDiscoverUrl = "https://" + $RoleExternalCASServerDomain + "/a ...

if ($RoleExternalCASServerDomain -ne $null)          {            $ExternalAutoDiscoverUrl = "https://" + $RoleExternalCASServerDomain + "/autodiscover/autodiscover.svc";            Get-AutodiscoverVirtualDirectory -ShowMailboxVirtualDirectories -Server:$RoleFqdnOrName -DomainController $RoleDomainController | Set-AutodiscoverVirtualDirectory -ExternalUrl $ExternalAutoDiscoverUrl;          }