PrivacyBackup The Carbonio Admin Panel’s Backup GUI enables mail servers to be configured to save mailbox items in backup. Backup Restore Strategies, while part of the Backup processes, are presently only available through the CLI. The one exception is Restore Account, which can only be done using the GUI, under Admin- Panel- Domains- Manage- Restore Account.

The settings are divided into two sections: Global Server Settings, which apply to all defined storages, and Server Specifics, which allows you to configure distinct backup rules for individual servers if more than one has been created.

PrivacyGlobal Server Configuration

The primary configuration choices are further divided into two sections: Server Config and Advanced, with Server Lists offering an overview of the current backup status on the designated servers.

Server Configuration

This section contains settings for the server’s normal activities.

The first three choices allow you to configure the Realtime scanner (Enable Realtime Scanner), the module itself (This module is enabled at startup), and the Smartscan (Run the Smartscan at startup) to start automatically.


While it is possible to enable the Smartscan at startup, it is suggested to leave the option disabled, because in certain situations, running SmartScan at every Carbonio Backup restart can become a performance bottleneck, as it has been discussed in section When to Disable Scan Operations.

Privacy Set the directory where backups will be saved, which defaults t/opt/zextras/backup/zextras/, as well as the threshold values (in Megabytes): how much space to reserve for backups and for the Metadata.

The next option is to establish the Smartscan schedule, or when the Smartscan runs. The default value is 0 4 * * *, which indicates that Smartscan will run every day at 4:00 AM.


This option uses the crontab syntax; to learn more, login using SSH to your Carbonio installation and execute man 5 crontab.

The last group of choices in the section are connected to the Backup Purge: its Schedule (which defaults to 0 4 * * 6, i.e., at 4:00 AM on Saturdays), and the Retention Policy for items and accounts, which has a value of 30 days by default.


Setting either retention policy to 0 will disable the Backup Purge and never remove items or accounts from the backup.


This section contains options for include data in backups that are not normally included in backups.

You may include the LDAP dump and the whole Server Configuration in backups, and you can purge old configurations to save space.

The following settings allow you to save the Index in a backup to speed up searches: To specify how the index is saved, utilise the textfields shown below.

Finally, for the metadata in the backup, there are two options: make sure they are updated every time the backup is saved (Flash metadata on the disc at every save) and that the user’s metadata are included in the remote backup (Archive user metadata folder in the remote backup).

PrivacyServer Listings

This section displays information about the current backup status on the defined servers, including active settings (Backup upon startup, Realtime Status, Smartscan, Purge interval), whether the backup is local or remote, a description, and how much space Metadata and the Backup occupy.