hello,
zimbra6 CS not starting due to below error


tail /var/log/zimbra.log
Mar 6 17:22:12 centos zmmailboxdmgr[25341]: file /opt/zimbra/log/zmmailboxd.pid does not exist
Mar 6 17:22:12 centos zmmailboxdmgr[25341]: assuming no other instance is running
Mar 6 17:22:12 centos zmmailboxdmgr[25341]: no manager process is running
Mar 6 17:22:17 centos zmmailboxdmgr[25759]: status requested
Mar 6 17:22:17 centos zmmailboxdmgr[25759]: stale pid 13641 found in /opt/zimbra/log/zmmailboxd_manager.pid: No such process
Mar 6 17:22:17 centos zmmailboxdmgr[25759]: assuming no other instance is running
Mar 6 17:22:17 centos zmmailboxdmgr[25759]: file /opt/zimbra/log/zmmailboxd.pid does not exist
Mar 6 17:22:17 centos zmmailboxdmgr[25759]: assuming no other instance is running
Mar 6 17:22:17 centos zmmailboxdmgr[25759]: no manager process is running
Mar 6 17:22:28 centos postfix/postqueue[25924]: fatal: Queue report unavailable - mail system is down