$servername = "SERVERNAME"
$internalhostname = "mail.domain.local"
$externalhostname = "mail.domain.de"
$autodiscoverhostname = "autodiscover.domain.de"

$ewsinturl = "https://" + "$internalhostname" + "/EWS/Exchange.asmx"
$ewsexturl = "https://" + "$externalhostname" + "/EWS/Exchange.asmx"
$aduri = "https://" + "$autodiscoverhostname" + "/Autodiscover/Autodiscover.xml"

Get-ClientAccessServer | Set-ClientAccessServer -AutoDiscoverServiceInternalUri $aduri
Get-WebServicesVirtualDirectory | Set-WebServicesVirtualDirectory -internalurl $ewsinturl -externalurl $ewsexturl
Get-OutlookAnywhere -Server $servername | Set-OutlookAnywhere -externalhostname $externalhostname -internalhostname $internalhostname -ExternalClientsRequireSsl:$true -InternalClientsRequireSsl:$true -ExternalClientAuthenticationMethod 'Negotiate'
 
Get-OwaVirtualDirectory -Server $servername | fl server,externalurl,internalurl
Get-EcpVirtualDirectory -server $servername | fl server,externalurl,internalurl
Get-WebServicesVirtualDirectory -server $servername | fl server,externalurl,internalurl
Get-ActiveSyncVirtualDirectory -Server $servername | fl server,externalurl,internalurl
Get-OabVirtualDirectory -Server $servername | fl server,externalurl,internalurl
Get-OutlookAnywhere -Server $servername | fl servername,ExternalHostname,InternalHostname
Get-ClientAccessServer $servername | fl name,AutoDiscoverServiceInternalUri