$cert = Get-ExchangeCertificate -Thumbprint XXXXXX
$tlscertificatename = "<i>$($cert.Issuer)<s>$($cert.Subject)"
Byta på Send Connector
Set-SendConnector "SendConnector" -TlsCertificateName $tlscertificatename
Byta på ReceiveConnector
Set-ReceiveConnector "ReceiveConnector" -TlsCertificateName $tlscertificatename