WinSCP Scripting Problem

I am using WinSCP script to SFTP a file.  I have the code working to upload the file but I'm wanting to send a confirmation email upon success/failure of the transfer.    Here is what I've done so far:

Created a batch file (that is called weekly through Windows Scheduler).

WinSCP_Start.bat

@echo on
"C:\Program Files (x86)\WinSCP\WinSCP.exe" /script=c:\netlearning\nl_upload.txt

Calls nl_upload.txt script file (contents here)

option batch abort
# Disable overwrite confirmations that conflict with the previous
option confirm off
# Connect to SFTP server using a password
open sftp://username:password@sft.site.com/ -hostkey="ssh-rsa 2048 xx:xx:xx:xx.......
# Upload file
put c:\folder\somefile.csv
# Disconnect
#close

This works correctly and the file is uploaded.   how do I then grab a 'successs/failure' parameter to send via email?  I was thinking about grabbing the parameter and then passing it to PowerShell to a script I wrote to send an email....  (or is there an easier way....

powershell script to send email:

$msg = new-object Net.Mail.MailMessage
$smtp = new-object Net.Mail.SmtpClient("smtp_email_server")
$msg.From = "sender@somesite.org"
$msg.To.Add("receiver@somesite.org")
$msg.Subject = "Success/Failure"
$msg.Body = "Success/Failure"
$smtp.Send($msg)


Thank you!