Fresh running perfectly but still trouble for update from previous.
It's because so many 'waste' files make conflict to 'new' settings on Kloxo-MR.
For example. On previous setting, clamav, qmail, courier and spamassassin use separate config. On new setting, all setting enough handle by qmail via daemon.
But qmail-toaster have another issues especially related to softlimit setting. Default setting from rpm not enough.