$FileSystemWatcher = New-Object System.IO.FileSystemWatcher
$FileSystemWatcher.Path  = "C:\temp"

Register-ObjectEvent -InputObject $FileSystemWatcher  -EventName Created  -Action {

$Object  = "{0} was  {1} at {2}" -f $Event.SourceEventArgs.FullPath,
            $Event.SourceEventArgs.ChangeType,
            $Event.TimeGenerated
            $Event.SourceEventArgs.FullPath


############################ Get the last file in the directory and pull its contents
$filepath = "C:\temp"
$filename = (get-content $filepath | sort CreationTime -Descending | select -last 1).Name
$Join = Join-Path -path $filepath -ChildPath $filename
$content = Get-Content -Raw $join | out-string

############################ Send the message
$EmailParams = @{
    credential = Import-CliXml -Path 'C:\temp\cred.xml' # this needs to be stored prior with "Get-Credential | Export-CliXml -Path C:\path\cred.xml"
    From = "email@gmail.com"
    To = "email@gmail.com"
    Subject = $Object
    Body = $content
    SMTPServer = "smtp.gmail.com"
    Port = "587"
    }
  Send-MailMessage @EmailParams -UseSsl
}