A Solution is found! Thanks Rogerl !
I changed the syslog-ng configuration as you described (the default source on my CentOS 5.4 system is s_sys) and now I get a log of status messages on the zimbra logs and the "Server Statistics" page no longer shows error messages.
After about 5 minutes since the change, the "Server Status" page also turned blue - it was not immediate.
But now it is fixed! apparently the problem is simply the syslog-ng configuration. I'll go an open a bug about it. |