Mastering zimbra command line

Introduction

Zimbra is an open-source email and collaboration solution trusted by many businesses for its flexibility and high customizability. Using the command line in Zimbra can help system administrators perform management tasks quickly and efficiently. 

In this article, we will guide you on how to use command lines in Zimbra to easily manage your email system. How do I use zimbra command lines (CLI) , my post focus command lines for zimbra ldap, zimbra mta, zimbra mailbox, zimbra proxy.

For zimbra ldap

To get all artibute information of uid in base DN:

# ldapsearch -LLL -D "uid=zimbra,cn=admins,cn=zimbra" -x -H ldap://ldap.huuphan.local -w password -b dc=huuphan,dc=local "(&(uid=huupv))"

For zimbra MTA

Starting zmconfigd...failed

Host mta.huuphan.local
        Starting zmconfigd...Failed.
Starting zmconfigd...failed.

To solve problem

# vim /etc/hosts
comment out, to fixed Starting zmconfigd...Failed.
127.0.0.1   localhost.localdomain localhost

To display trouble logs

# egrep '(reject|warning|error|fatal|panic):' /var/log/zimbra.log

To check if no smtp connection

# netstat -nplt | awk '{print $4 " " $6}' | egrep "[0-9]+.[0-9]+.[0-9]+.[0-9]+:25" | egrep "ESTABLISHED" | wc -l

To see the postfix queue (as zimbra user)

# sudo ~/libexec/zmqstat
# postqueue -p
or
# mailq

How to delete all MAILER-DAEMON emails in Postfix queue ( To run root user)

for i in `/opt/zimbra/postfix/sbin/postqueue -p|grep 'MAILER-DAEMON' |awk {'print $1'}|grep -v 'MAILER-DAEMON'`; do /opt/zimbra/postfix/sbin/postsuper -d $i ; done

To view message postfix queue

# postcat -q C12E6246BC | more

Tuning Postfix queue in Zimbra

To check and reconfigure queue lifetime

$ postconf | grep maximal_queue_lifetime
maximal_queue_lifetime = 5d
$ postconf -e maximal_queue_lifetime=15m

To check and reconfigure deferred queue parameter

$ postconf | egrep "queue_run_delay|minimal_backoff_time"
minimal_backoff_time = 300s
queue_run_delay = 300s
$ postconf -e queue_run_delay=2000s
$ postconf -e minimal_backoff_time=2000s

Conclusion

Mastering command lines in Zimbra will help you optimize your email system management, thereby enhancing work efficiency and ensuring smooth operations for your business. We hope this article has provided you with useful knowledge to apply in practice. Stay tuned to our website for more valuable information and guides on technology and system management. thank you for reading the huuphan.com page!