fatal: Queue report unavailable – mail system is down

[root@webmail ~]# tail -f /var/log/maillog
Oct 13 16:24:57 webmail amavis-services[14204]: amavis-services-2.9.0 (20140506) task ‘msg-forwarder’ [14204] started. ZMQ::LibZMQ3 1.13, lib 3.2.3
Oct 13 16:24:57 webmail amavis-services[14205]: amavis-services-2.9.0 (20140506) task ‘childproc-minder’ [14205] started. ZMQ::LibZMQ3 1.13, lib 3.2.3
Oct 13 16:24:57 webmail amavis-services[14206]: amavis-services-2.9.0 (20140506) task ‘snmp-responder’ [14206] started. ZMQ::LibZMQ3 1.13, lib 3.2.3
Oct 13 16:24:58 webmail amavis-services[14205]: childproc_minder: FLUSH process states
Oct 13 16:25:00 webmail postfix/postqueue[14314]: fatal: Queue report unavailable – mail system is down
Oct 13 16:25:05 webmail amavis-services[14206]: snmp_responder: FLUSH snmp data
Oct 13 16:25:05 webmail amavis-services[14205]: childproc_minder: FLUSH process states
Oct 13 16:25:30 webmail postfix/postqueue[15496]: fatal: Queue report unavailable – mail system is down
Oct 13 16:26:00 webmail postfix/postqueue[15622]: fatal: Queue report unavailable – mail system is down
Oct 13 16:26:30 webmail postfix/postqueue[17160]: fatal: Queue report unavailable – mail system is down
Oct 13 16:27:00 webmail postfix/postqueue[17226]: fatal: Queue report unavailable – mail system is down

SOLUSI

[root@webmail /]# locate master.pid
/opt/zimbra/data/postfix/spool/pid/master.pid
[root@webmail /]# cd /opt/zimbra/data/postfix/spool/pid/

[root@webmail pid]# cp master.pid master.pid.bak

[root@webmail pid]# rm -Rf master.pid

[root@webmail pid]# su – zimbra
Last login: Thu Oct 13 16:24:45 WIB 2016 on pts/0
[zimbra@webmail ~]$ zmmtactl start
Rewriting configuration files…done.
Starting saslauthd…already running.
/postfix-script: starting the Postfix mail system
[zimbra@webmail ~]$