Strange message: Cron <root@mail> run-parts /etc/cron.daily

[ppaixao]

Hi all,

Yesterday i've updated my ZCS from 6.0.8 to 6.0.9, all gone ok.
Today i've receveid a strange mail from : "Cron Daemon" <root@xxxxxxxxx> with the title: "Cron <root@mail> run-parts /etc/cron.daily" and body:
/etc/cron.daily/logrotate:

error: zimbra:5 unknown user 'USER'
error: found error in /var/log/zimbra.log , skipping
error: zimbra:17 unknown user 'USER'
error: found error in /var/log/zimbra-stats.log , skipping

Anyone can help with this? What this means??

Thank you.

[uxbod]

Bug 53584 - logrotate issue