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Kopano Basic

Kopano Basic for ClearOS provides a powerful mail and groupware solution with:

  • Mail / Webmail
  • Contacts
  • Calendars
  • Tasks


If your system does not have this app available, you can install it via the Marketplace.

Because Kopano uses objects directly in OpenLDAP, Kopano is NOT compatible with accounts in Active Directory provided by the AD Connector app. While support does exist in Kopano for users that wish to modify their Active Directory Schema, this mode has neither been tested nor supported by ClearCenter

You can find this feature in the menu system at the following location:

Server|Messaging and Collaboration|Kopano Basic for ClearOS

Purchase and Kopano Serial Number

After purchasing Kopano Basic through Marketplace, a serial number will be issued to you within one business day. You will need to enter this serial number into the ClearOS app page in order to fully activate your Kopano install. The serial number will be emailed to the address you have used when creating your ClearCenter Account.

Your Kopano serial number is not the same as your ClearCenter subscription serial number.

If you ever need to retrieve your serial number or did not receive an email, login to the ClearCenter Portal and navigate to “Account –> Asset Management –> Subscriptions”. Click on “View” to see a subscription's detail. See screenshot below that illustrates how to find your Kopano serial that is used in Webconfig.


The base mail domain is used by a number of apps: SMTP Server, IMAP, Mail Filter, etc. Each app saves this information in its own configuration file, but we really only want to see the domain in one place in the user interface. That's where the Mail Settings app comes in. This might not be the way we'll do it in the final release, but that's how it is done right now:

  • Go to System|Account Manager|Account Manager to make sure the accounts system (users/groups) is running.
  • Go to System|Settings|Mail Settings to set the mail domain.
  • Go to System|Accounts|Users to create a few users. Please make sure the SMTP Server User and Kopano Account are enabled for the user. Feel free to fill out the contact information too - this information is shown in Kopano's address book!
  • Go to System|Accounts|Groups to create a group or two. You will see a new option when adding/editing a group: Distribution List. If you leave this option enabled, the group becomes a mail distribution list (e.g. will go to all the members of the sales group).
  • Go to Server|Messaging and Collaboration|Kopano Basic for ClearOS and start all the servers (if not running).
  • A serial number is provided within one business day of making the Kopano purchase via Marketplace. Add this serial number to your install via the web-based administration tool.

That's it. You should be able login to the Kopano web client with your user account credentials:

Webapp Access

You can access the webapp interface by visiting https://w.x.y.z/webapp.

Test Repositories

ClearCenter operates a separate repository for testing the latest stable releases of Kopano and the supporting packages. If you would like to run the latest version and it is not installed by default from the ClearOS Marketplace, try upgrading with the following command:

ENABLE_BETA=True yum upgrade app-kopano kopano*
content/en_us/7_ug_kopano_basic.txt · Last modified: 2018/10/25 09:09 by dloper