Senden als öffentlicher Ordner ohne Outook

Function sendmail($FROM,$TO,$SUBJECT,$BODY,$ATTACHMENTS = $null){
  $SMTPHOST = "smtp.server.de"  
  $SMTPPORT = 25
  $SMTPUSER = "USERNAME"  
  $SMTPPass = "PASSWORD"  
  $SMTPClient = New-object System.Net.Mail.SmtpClient($SMTPHOST,$SMTPPORT)
  $Mail = new-object System.Net.Mail.MailMessage
  $Mail.from = $FROM 
  $Mail.to.add($TO)
  $SMTPClient.Credentials = new-object System.Net.NetworkCredential($SMTPUSER,$SMTPPass)
  $Mail.Subject = $SUBJECT
  $Mail.Body = $BODY
  # Add Attachments
  if ($ATTACHMENTS){
      foreach ($att in $ATTACHMENTS){
        $Mail.Attachments.Add($att.FullName)
      }
  }
  $SMTPClient.Send($Mail)
}

sendmail "publicFolder@domain.de" "empfaenger@domain.de" "DEIN BETREFF" "DER INHALT"  

Send-MailMessage -From "publicFolder@domain.de" -to "empfaenger@domain.de" -SmtpServer serverxyz.intern -Subject "Test" -Body "Testbody" -Credential Get-Credential