//205rename_sentmail_monthly
// rename sent-mail folder every month?
$_prefs['rename_sentmail_monthly'] = array(
    'value' => 0,
    'locked' => false,
    'shared' => false,
    'type' => 'checkbox',
    'desc' => _("Rename sent-mail folder at beginning of month?"),
    'help' => 'prefs-rename_sentmail_monthly');
