PowerShell 2.0 sendMail Skript

Send-MailMessage : Falsche Befehlsfolge. Die Serverantwort war: This mail server requires authentication when attempting to send to a n
on-local e-mail address. Please check your mail client settings or contact your administrator to verify that the domain or address is d
efined for this server.
Bei X:\sven\Batch\Mail\edi_ueberwachung_XXX.ps1:44 Zeichen:18
+ |Send-MailMessage <<<<  -To $To -From $From -Cc $CC -BCc $BCC -Subject $Subject -Body $Body -SmtpServer $SMTPServer -Credential $cred
s -encoding ([System.Text.Encoding]::UTF8) 
    + CategoryInfo          : InvalidOperation: (System.Net.Mail.SmtpClient:SmtpClient) [Send-MailMessage], SmtpException
    + FullyQualifiedErrorId : SmtpException,Microsoft.PowerShell.Commands.SendMailMessage

Function sendmail($FROM,$TO,$SUBJECT,$BODY,$ATTACHMENTS = $null){
  $SMTPHOST = "webmail.xxx.at"  
  $SMTPPORT = 25
  $SMTPUSER = "edi@xxx.com"  
  # $SMTPPass = ""  
  
$SMTPClient = New-object System.Net.Mail.SmtpClient($SMTPHOST,$SMTPPORT)
  $SMTPClient.EnableSsl = $false
  $Mail = new-object System.Net.Mail.MailMessage
  $Mail.from = $FROM 
  $Mail.to.add($TO)

[System.Runtime.InteropServices.Marshal]::PtrToStringAuto([System.Runtime.InteropServices.Marshal]::SecureStringToBSTR((ConvertTo-SecureString -String $deinSecureText)))


  $SMTPClient.Credentials = new-object System.Net.NetworkCredential($SMTPUSER,$deinSecureText))
  $Mail.Subject = $SUBJECT
  $Mail.Body = $BODY
  # Add Attachments
  if ($ATTACHMENTS){
      foreach ($att in $ATTACHMENTS){
        $Mail.Attachments.Add($att.FullName)
      }
  }
  $SMTPClient.Send($Mail)
}

sendmail "edi@xxx.com" "xxx@hotmail.com" "test" "DER INHALT"  

Function sendmail($FROM,$TO,$SUBJECT,$BODY,$ATTACHMENTS = $null){
  $SMTPHOST = "mail.gmx.net"  
  $SMTPPORT = "587"  
  $SMTPUSER = "Nummer"  
  $SMTPClient = New-object System.Net.Mail.SmtpClient($SMTPHOST,$SMTPPORT)
  $SMTPClient.EnableSsl = $true
  $Mail = new-object System.Net.Mail.MailMessage
  $Mail.from = $FROM 
  $Mail.to.add($TO)
  $SMTPSECUREPASS = get-content "V:\XXX\Batch\Mail\passwort_gmx.txt" | convertto-securestring -key (1..16)  
  $SMTPClient.Credentials = new-object System.Net.NetworkCredential($SMTPUSER,$SMTPSECUREPASS) 
  $Mail.Subject = $SUBJECT
  $Mail.Body = $BODY
  # Add Attachments
  if ($ATTACHMENTS){
      foreach ($att in $ATTACHMENTS){
        $Mail.Attachments.Add($att.FullName)
      }
  }
  $SMTPClient.Send($Mail)
}

sendmail "XXX@gmx.at" "XXX@hotmail.com" "test" "DER INHALT"  

$secure = read-host -assecurestring 

$encrypted = convertfrom-securestring -secureString $secure -key (1..16) 

#Pfad zur Passwort Datei
$encrypted | set-content V:\XXX\Batch\Mail\passwort_gmx.txt

PS V:\XXX\Batch\Mail> V:\XXX\Batch\Mail\neu_ps2.ps1
Ausnahme beim Aufrufen von "Send" mit 1 Argument(en):  "Für den SMTP-Server ist eine sichere Verbindung erforderlich, oder der Client w  
urde nicht authentifiziert. Die Serverantwort war: Authentication required"  
Bei V:\XXX\Batch\Mail\neu_ps2.ps1:20 Zeichen:19
+   $SMTPClient.Send <<<< ($Mail)
    + CategoryInfo          : NotSpecified: (:) , MethodInvocationException
    + FullyQualifiedErrorId : DotNetMethodException
 

____________________________________________________________________________________________________________________________________

($FROM,$TO,$SUBJECT,$BODY,$ATTACHMENTS = $null)

@("V:\test\test.txt")  

($FROM,$TO,$SUBJECT,$BODY,$ATTACHMENTS )

@("V:\test\test.txt")  

Ausnahme beim Aufrufen von "Add" mit 1 Argument(en):  "Der Wert darf nicht NULL sein.  
Parametername: item"  
Bei V:\sven\Batch\Mail\neu_ps2_work.ps1:22 Zeichen:30
+         $Mail.Attachments.Add <<<< ($att.FullName)
    + CategoryInfo          : NotSpecified: (:) , MethodInvocationException
    + FullyQualifiedErrorId : DotNetMethodException