These commands are vital for the server’s overall status, service management, and user/mailbox operations.
1. Service Management (zmcontrol)
Used to check, start, and stop Zimbra services.
| Process | Command | Description |
| View All Service Status | zmcontrol status |
Shows which Zimbra services are running or stopped. |
| Start All Services | zmcontrol start |
Starts all stopped Zimbra services. |
| Stop All Services | zmcontrol stop |
Stops all Zimbra services. |
| Restart All Services | zmcontrol restart |
Stops and restarts all Zimbra services. |
| Restart a Single Service | zmmailboxdctl restart |
For example, restarts only the Mailbox service. For other services, check the zmcontrol status output. |
2. User and Account Management (zmprov)
The zmprov (Zimbra Provisioning) command is used for user, domain, and configuration operations.
Account Operations
| Process | Command | Description |
| Create New User | zmprov ca user@domain.com Password |
Creates a new user account. |
| View User Information | zmprov ga user@domain.com |
Displays all configuration details of the specified user. |
| Change User Password | zmprov sp user@domain.com NewPassword |
Resets/changes the user’s password. |
| Set Mailbox Quota | zmprov ma user@domain.com zimbraMailQuota 2G |
Sets the user’s quota to 2 GB (M: megabytes, G: gigabytes). |
| Delete User | zmprov da user@domain.com |
Deletes the user account from the server. |
Domain Operations
List All Domains | zmprov gaa | Lists all domains on the server.
Add New Domain | zmprov cd domain2.com | Creates a new email domain.
3. Log and Queue Monitoring
Checking logs and the mail queue is important during troubleshooting.
| Process | Command | Description |
| Monitor Main Log File | tail -f /opt/zimbra/log/mailbox.log |
Monitors mailbox activity and errors in real time. |
| View Mail Queue | postqueue -p |
Lists emails waiting in the Postfix queue that could not be delivered. |
| Delete All Mails in Queue | postsuper -d ALL |
Use with caution! Deletes all mails in the queue. |
4. Indexing and Database Operations
Used especially when search issues occur or the mailbox is corrupted.
| Process | Command | Description |
| Rebuild Mailbox Index | zmprov reindexMailbox user@domain.com |
Rebuilds the user’s email search index (may take a long time). |
| Check Database Status | zmdbmgrctl status |
Checks the status of the MySQL/MariaDB (Zimbra database) service. |
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