Send an email alert with a list of files in a path older than 5 minutes.

monitor.ps1

# Set-ExecutionPolicy Unrestricted
$src1="\\processing\files"
$sendmail=$false

Get-ChildItem -path $src1 -Recurse -File |
Foreach-Object {
	$dtdiff = New-TimeSpan ($_.CreationTime) $(Get-Date)

	if ($dtdiff.minutes -gt 5) {
	    $strbody=$strbody +$_.fullname+ " - Last Modified Time: "  +$_.LastWriteTime +"`r`n"
        $sendmail=$true
	    write-host $_.fullname
    }
}

if($sendmail -eq $true) {
# Email components
$strFromAddress = "alert@examplecom"
$strToAddress = "soc@example.com"
$strMessageSubject = "Stuck incoming files"
$strMessageBody = $strbody
$strSendingServer = "mail.example.com"

# Email objects
$objSMTPMessage = New-Object System.Net.Mail.MailMessage $strFromAddress, $strToAddress, $strMessageSubject, $strbody
$objSMTPClient = New-Object System.Net.Mail.SMTPClient $strSendingServer
$objSMTPClient.Send($objSMTPMessage) 

}