use strict;
use Win32::OLE qw(in with);
use Win32::OLE::Const 'Microsoft Outlook';

...

$namespace = ...

$Folder1 = ...
...
$Folder4 = ...

...

foreach $item (in $Folder4->{Items}){

$date = $item->{CreationTime}->Date('ddd MMM dd, yyyy').' '.$item ->{CreationTime}->Time('hh:mm:ss tt');
print $date . "\n";
}


##</code><code>##


EDIT:

After looking up the appropriate documentation on MSDN, I found out I should be using ReceivedTime. Well, that was simple.