电子邮件通知Powershell获得2封电子邮件

Question

我写了一个powershell脚本，当文件保存在某个文件夹中时获得电子邮件通知。第一次有人保存时，它的效果很好，但是之后有人保存时，您会收到2封电子邮件。您能否查看下面发布的代码，看看我到底做错了什么或为什么会发生这种情况？

$folder = "Folder Path"
$mailserver = "mail server"
$recipient = "Alerts@Email.com"

$fsw = New-Object System.IO.FileSystemWatcher $folder -Property @{
   IncludeSubdirectories = $true
   EnableRaisingEvents=$true
}
$created = Register-ObjectEvent -InputObject $fsw -EventName Created -SourceIdentifier CreatedEvent -Action {
   $item = Get-Item $eventArgs.FullPath
   $s = New-Object System.Security.SecureString
   $anon = New-Object System.Management.Automation.PSCredential ("NT AUTHORITY\ANONYMOUS LOGON", $s)
   If (($item -notlike '~') -And ([IO.Path]::GetExtension($item) -ne '.tmp')) {
            Send-MailMessage -To $recipient `
                -From "Email@Email.com" `
                -Subject “File Creation Event” `
                -Body "A file was created: $($eventArgs.FullPath)" `
                -SmtpServer $mailserver `
                -Credential $anon
}
}