# This script was originally published in the Exchange Cookbook,
# (https://www.exchangebookcook.com). Written by Paul Robichaux, 
# Missy Koslosky, and Devin Ganger. Redistributed with permission 
# of the publisher, O'Reilly & Associates.
# This code uses WMI to interrogate and change message tracking 
# properties on the specified server.
# ------ SCRIPT CONFIGURATION ------
use Win32::OLE qw(in);
$strComputerName = '<serverName>';
# e.g. "BATMAN"
# ------ END CONFIGURATION ---------
$strE2K3WMIQuery = 'winmgmts://' . $strComputerName . '/root/MicrosoftExchangeV2';
# Find each Exchange 2003 server and display its message tracking status.
# Then, turn on message tracking and subject display and set the 
# log retention period to 7 days. Real code should include error checking here
$serverList = Win32::OLE->GetObject('Exchange_Server');
foreach my $Exchange_Server (in $serverList) {
    print 'Server:        ' . $Exchange_Server->Name, "\n";
    $isEnabled = $Exchange_Server->MessageTrackingEnabled;
    if (($isEnabled)) {
        print "      Message tracking already enabled\n";
    }
    else {
        $Exchange_Server->EnableMessageTracking(1);
    }
    print '      Current lifetime: ' . $Exchange_Server->MessageTrackingLogFileLifetime, "\n";
    $Exchange_Server->{MessageTrackingLogFileLifetime} = 7;
    print '      New lifetime:     ' . $Exchange_Server->MessageTrackingLogFileLifetime, "\n";
    print '      Current subject logging:     ' . $Exchange_Server->SubjectLoggingEnabled, "\n";
    $Exchange_Server->{SubjectLoggingEnabled} = 1;
    print '      New subject logging:         ' . $Exchange_Server->SubjectLoggingEnabled, "\n";
    $Exchange_Server->Put();
}