Check Existing files, and send mail

$filePath = "C:\test"
$logPath = "C:\test\file.csv"
$log

#Test if log exist, if exist import
if (Test-Path -LiteralPath $logPath) {
    $log = Import-Csv -LiteralPath $logPath -Delimiter ';'
} else {
    $log = $null
}

$fileList = [System.Collections.Generic.List[PsObject]]::new()
$files = Get-ChildItem -LiteralPath $filePath -Recurse -File | where {$_.CreationTime -gt (Get-Date).AddHours(-2)}

# Check if files are allready logged, else add to log
foreach ($file in $files) {

    $hash = [ordered]@{
        'dateScanned' = Get-Date
        'name' = $file.Name
        'fullName' = $file.FullName
        'identifier' = "$($file.CreationTime.ToString("yyyyMMddhhmmss"))$($file.Name.Replace(' ',''))"
    }
    $obj = New-Object -TypeName PsObject -Property $hash

    if ($log.identifier -notcontains $obj.identifier) {
        $fileList.Add($obj)
    }
}

# send mail if there are new files, otherwise don't
if ($fileList.count -ne 0) {

    $body = "Following files older than 2 hours have just been logged to $logPath`n"
    $fileList.fullname | foreach {$body += "`n$_"}

    #Fill in your own mail info
    $mailProperties = [ordered]@{
        From =
        Body = $body
        SmtpServer =
        Port =
        To =
        Subject =
        Encoding =
    }
    Send-MailMessage -BodyAsHtml -UseSsl @mailProperties
}

$fileList | Export-Csv -Path $logPath -Encoding UTF8 -Delimiter ';' -NoTypeInformation -Append