use strict;
use Win32::OLE;
use Win32::OLE::Const 'Microsoft Outlook';
use Win32::OLE::Variant;
use Time::Local;
use POSIX;

#open the Outlook program
my $outlook;
eval {
  $outlook = Win32::OLE->GetActiveObject('Outlook.Application')
};
if ($@ || !defined($outlook)) {
  $outlook = Win32::OLE->new('Outlook.Application', sub {$_[0]->Quit;}) or die "oops\n";
}

my $namespace = $outlook->GetNameSpace("MAPI") or die "can't open MAPI namespace\n";
my $Folder;
my $subfoldernm = "Calendar";
my $sheetcnt = $namespace->Folders->Count();
foreach (1..$sheetcnt){
   $Folder = $namespace->Folders($_)->{Name};
   print "\n\t No.". $_ ." Folder Name - >" .$Folder ."<\n";
   print "\n\t\tNo.\tItems\tItems";
   my $subfldrcnt = $namespace->Folders($Folder)->Folders()->Count or my $dummy = "true";

   foreach (1..$subfldrcnt){
       my $subfolder = $namespace->Folders($Folder)->Folders($_)->{Name} or die "cant access folder $Folder";
       my $itemcnt = $namespace->Folders($Folder)->Folders($subfolder)->Items()->Count or my $empty = "true";
       print "\n\t\t$_\t$itemcnt\t$subfolder";

   }
}