Suddenly mta stopped postfix is not running on Zimbra server. After that try to restart the Zimbra services but it does not succeed. Zimbra is SMTP server for oracle workflow notification.

Steps to resolve mta stopped postfix error.
[[email protected] ~]$ zmcontrol start
Host mail.ace-cranes.in
Starting zmconfigd…Done.
Starting dnscache…Done.
Starting logger…Done.
Starting mailbox…Done.
Starting memcached…Done.
Starting proxy…Done.
Starting amavis…Done.
Starting antispam…Done.
Starting antivirus…Done.
Starting opendkim…Done.
Starting snmp…Done.
Starting spell…Done.
Starting mta…Failed.
Check status using zmcontrol:-
[[email protected] ~]$ zmcontrol status
Host mail.ace-cranes.in
amavis Running
antispam Running
antivirus Running
dnscache Running
ldap Running
logger Running
mailbox Running
memcached Running
mta Stopped
postfix is not running
opendkim Running
proxy Running
service webapp Running
snmp Running
spell Running
stats Running
zimbra webapp Running
zimbraAdmin webapp Running
zimlet webapp Running
zmconfigd Running
In /var/log/zimbra.log, showing below logs.
Error:-
Dec 14 10:23:00 mail postfix/postqueue[23568]: fatal: Queue report unavailable – mail system is down
Dec 14 10:23:03 mail zimbramon[23601]: 23601:info: Starting services initiated by zmcontrol
Dec 14 10:23:04 mail zimbramon[23601]: 23601:info: Starting zmconfigd via zmcontrol
Dec 14 10:23:04 mail zimbramon[23601]: 23601:info: Starting dnscache via zmcontrol
Dec 14 10:23:04 mail zimbramon[23601]: 23601:info: Starting logger via zmcontrol
Dec 14 10:23:04 mail zimbramon[23601]: 23601:info: Starting mailbox via zmcontrol
Dec 14 10:23:04 mail zimbramon[23601]: 23601:info: Starting memcached via zmcontrol
Dec 14 10:23:04 mail zimbramon[23601]: 23601:info: Starting proxy via zmcontrol
Dec 14 10:23:04 mail zimbramon[23601]: 23601:info: Starting amavis via zmcontrol
Dec 14 10:23:04 mail zimbramon[23601]: 23601:info: Starting antispam via zmcontrol
Dec 14 10:23:07 mail zimbramon[23601]: 23601:info: Starting antivirus via zmcontrol
Dec 14 10:23:07 mail zimbramon[23601]: 23601:info: Starting opendkim via zmcontrol
Dec 14 10:23:07 mail zimbramon[23601]: 23601:info: Starting snmp via zmcontrol
Dec 14 10:23:07 mail zimbramon[23601]: 23601:info: Starting spell via zmcontrol
Dec 14 10:23:07 mail zimbramon[23601]: 23601:info: Starting mta via zmcontrol
Dec 14 10:23:07 mail /postfix-script[24064]: the Postfix mail system is not running
If other program using 25 port then note PID of that program and kill
Identify the problamatic pid using netstat command.
[[email protected] ~]# netstat -tulpn
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:7993 0.0.0.0:* LISTEN 18927/java
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 3723/master
Kill the port pid:-
Using kill command we will kill 25 port pid.
# kill -9 3723
We know that earlier we were faced the issue as mta stopped postfix is not running.
How to start Zimbra services?.
Here we can see we are usning zmcontrol command to start the zimbra services.
[[email protected] ~]$ zmcontrol start
Host mail.ace-cranes.in
Starting zmconfigd…Done.
Starting dnscache…Done.
Starting logger…Done.
Starting mailbox…Done.
Starting memcached…Done.
Starting proxy…Done.
Starting amavis…Done.
Starting antispam…Done.
Starting antivirus…Done.
Starting opendkim…Done.
Starting snmp…Done.
Starting spell…Done.
Starting mta…Done.
Starting stats…Done.
Starting service webapp…Done.
Starting zimbra webapp…Done.
Starting zimbraAdmin webapp…Done.
Starting zimlet webapp…Done.
Verify the services status:-
[[email protected] ~]$ zmcontrol status
Host mail.ace-cranes.in
amavis Running
antispam Running
antivirus Running
dnscache Running
ldap Running
logger Running
mailbox Running
memcached Running
mta Running
opendkim Running
proxy Running
service webapp Running
snmp Running
spell Running
stats Running
zimbra webapp Running
zimbraAdmin webapp Running
zimlet webapp Running
zmconfigd Running
Now check the workflow services are running and resolve mta stopped postfix.
You may check the another related post at ‘mta stopped postfix‘.
You may also check my another post related to RMAN bacup click ‘‘here‘.
Hi Sajid,
This solution is works for me.
Thank you
Great! We are thankful that you found this post useful. Best of luck!