I'm running Zimbra 5.0.13 on CentOS 5.2 and have problems with periodic server reboots after which emails stick in the mail queue. Sometimes I can clear them by requeueing but most often I have to reboot the server. the periodic reboots began after installing Zimbra.
I've invested a lot of my own time and have had a couple of Linux admins look at it but can't seem to find the problem. Is there an experienced Zimbra admin who would be willing to take a look at my server?