//217purge_sentmail
// purge sent-mail folder?
$_prefs['purge_sentmail'] = array(
    'value' => 0,
    'locked' => false,
    'shared' => false,
    'type' => 'checkbox',
    'desc' => _("Purge old messages in the sent-mail folder(s)?"),
    'help' => 'prefs-purge_sentmail');

