Change $smtpTo for email based on if statement - powershell

Question

Inside my register event action I have an if statement that checks to see if the paths match, if they do I set the email to $smtpTo to the proper email address. But I get an error "The parameter 'to' cannot be an empty string. I know the paths are correct as they Write to console in the if statement.
$MonitorFolder = Get-Content "C:\Desktop\ScanFTPDeptClients\OutgoingPathlist.txt"
$MonitorStopFile = "monitor.die"
$smtpServer = "mail.test.org"
$smtpFrom = "SYSTEMFUNCTION#test.org"
$smtpSubject = "Completed files have arrived in FTP"
$smtpTo= ""
$SourceID = "MonitorFiles"
foreach ($path in $MonitorFolder){
$i+=1
$watcher = New-Object System.IO.FileSystemWatcher $path
#Files only. Default is files + directory
$watcher.NotifyFilter = [System.IO.NotifyFilters]'FileName,LastWrite'
#Using a thread-safe collection (in global scope so Action-block can reach it) to store the log just to be safe.
$global:newFiles = [System.Collections.ArrayList]::Synchronized((New-Object System.Collections.ArrayList))
$newFileSubscription = Register-ObjectEvent $watcher Created -SourceIdentifier $i+"NewFileCreated" -Action {
Write-Host "New file named '$($Event.SourceEventArgs.Name)' arrived in $(split-path $Event.SourceEventArgs.FullPath)"
#Check the path
$deptClient= "$(split-path $Event.SourceEventArgs.FullPath)"
#set the email based on folder path
if ("$($deptClient)" -eq "\\vavm\FTP\C\O\RuthWebster"){
Write-host "$($deptClient)"
$smtpTo = "test#test.org"
}
#add files to content of body email
$global:newFiles.Add("`n[$(Get-Date -Format HH:mm:ss)]`t $($Event.SourceEventArgs.Name)has been completed and arrived in $(split-path $Event.SourceEventArgs.FullPath) ")
if($Event.SourceEventArgs.Name -eq $MonitorStopFile) {
Write-Host "Monitoring stopped"
#Stop monitoring
Unregister-Event -SubscriptionId $newFileSubscription.Id
#Dispose FileSystemWatcher
$watcher.Dispose()
}
}
}
$smtp = New-Object -TypeName "Net.Mail.SmtpClient" -ArgumentList $smtpServer
while ($watcher.EnableRaisingEvents -or $global:newFiles.Count -gt 0) {
#Sleep
Start-Sleep -Seconds 10
if($global:newFiles.Count -gt 0) {
#Convert list of strings to single string (multiline)
$smtpbody = $global:newFiles
$smtp.Send($smtpFrom, $smtpTo, $smtpSubject, $smtpBody)
#Mail sent, Empty array
$global:newFiles.Clear()
}
}

Answer 1

Try with $smtpTo as a global variable. Replace all $smtpTo with $global:smtpTo.
Btw. you don't need to wrap split-path in a string and subexpression. Try:
$deptClient= split-path $Event.SourceEventArgs.FullPath
#set the email based on folder path
if ($deptClient -eq "\\vavm\FTP\C\O\RuthWebster"){
Write-host $deptClient
$smtpTo = "test#test.org"
}