Get-ChildItem D: -Recurse -File | Measure-Object | %{$_.Count}

$Count = Get-ChildItem D: -Recurse -File | Measure-Object | %{$_.Count}
$Status= $Event.Message
$From = "sender@sender.com"
$To = "receiver"
$SMTPServer = "smtp"
$SMTPPort = "587"
$Username = "email@email.us"
$Password = "password"
$Subject = "$computer,Files count"
$Body = "Number of Files is $Count |D drive test "
$smtp = New-Object System.Net.Mail.SmtpClient($SMTPServer, $SMTPPort);
$smtp.EnableSSL = $false
$smtp.Credentials = New-Object System.Net.NetworkCredential($Username, $Password);
$smtp.Send($From, $To, $subject, $body);
$computer = "$env:computername

if ($Count -lt 60) {
  $Body = "Number of Files is low at $Count |D drive test "
} else {
  $Body = "Number of Files is $Count which is large |D drive test "
}

if ($count -le '50') {
    $Body = 'your text'
}
elseif (($count -gt '50') -and ($count -le '100')) {
    $Body = 'your text'
}
elseif (($count -gt '100') -and ($count -le '500')) {
    $Body = 'your text'
}
else {
    $Body = 'your text'
}

$folder = "C:myfolder"
$folderSize = ( Get-ChildItem $folder -Recurse -Force | Measure-Object -Property Length -Sum ).Sum
If ( $folderSize -lt 1KB ) { $folderSizeOutput = "$("{0:N2}" -f $folderSize) B" }
ElseIf ( $folderSize -lt 1MB ) { $folderSizeOutput = "$("{0:N2}" -f ($folderSize / 1KB)) KB" }
ElseIf ( $folderSize -lt 1GB ) { $folderSizeOutput = "$("{0:N2}" -f ($folderSize / 1MB)) MB" }
ElseIf ( $folderSize -lt 1TB ) { $folderSizeOutput = "$("{0:N2}" -f ($folderSize / 1GB)) GB" }
Write-Output $folderSizeOutput

if ($folderSize -le '46Gb') {
$Body =="Folder size is less then previos"
}

f ($folderSize -Gt '46Gb') {
$Body =="Folder size is less then previos"
}

$Count=Get-ChildItem D: -Recurse -File | Measure-Object | %{$_.Count}
if ($count -le '56') {
  $Body = "Number of Files is less than previous $Count which was 56 @ D drive test "
} else {
  $Body = "Number of Files is $Count which is large |D drive test "
}

if ($count -gt '56') {
  $Body = "Number of Files is larger than previous $Count which was 56 @ D drive test "
} else {
  $Body = "Number of Files is $Count which is large |D drive test "
}

$From = "sender@sender.com"
$To = "receiver"
$SMTPServer = "smtp"
$SMTPPort = "587"
$Username = "email@email.us"
$Password = "password"
$Subject = "$computer,Files count"
$Body = "Number of Files is $Count |D drive test "
$smtp = New-Object System.Net.Mail.SmtpClient($SMTPServer, $SMTPPort);
$smtp.EnableSSL = $false
$smtp.Credentials = New-Object System.Net.NetworkCredential($Username, $Password);
$smtp.Send($From, $To, $subject, $body);
$computer = $env:computername