Hosting FAQ for System Integrators

Q: Where can i get access to productive software packages for the hosting environment?
A: Packages for download are available in the Open-Xchange Packages

Q: Where can i get further assistance in case of installation/integration questions?
A: A forum for discussions is available on our web site

Q: How can i integrate into existing LDAP services?
A: The users and groups can be synced into OX through the commandline tools. The authentication can be done online through a LDAP authentication module

Q: Is there a administration frontend to create and manage contexts, users, groups, resources?
A: Provisioning of all objects (contexts, users, ...) can be very flexible done through the command line tools and the Java RMI interface. This interfaces can also be used for synchronisation with existing user databases and directories.

Administering groups and resources will be possible within the webfrontend with the next build.

Administration front ends for In-House deployments will follow soon.

Q: Where are the mails stored in the Open-Xchange server?
A: The Open-Xchange server has no own email server included. The Open-Xchange server does access mailboxes from existing systems. Please have a look at our architecture white paper.

Q: What are the supported IMAP servers?
A: Currently, Cyrus, Dovecot and Courier are the supported IMAP servers. This is described in more detail in the installation manual.

Q: How can i create user objects (appointments,tasks,infostore items, pre defined UWA widgets) form extern for a customer?
A: you can use the JSON HTTP API used by the gui, a example is to be found here: Adding a pre defined UWA widget for a User

Q: What are UWA widgets for?
A: a description can be found in the Wiki on the Hyperion UWA page

Q: What APIs are available?
A: The APIs are to be found under Interfaces in this wiki

Q: Do i need to set module access for the context admin user and how do i do that?
A: for the context admin, all modules must be enabled the like the users in the context have

Q: Can the Open-Xchange GUI be used to replace my existing Webmail system?
A: Of course! the Open-Xchange GUI can be used to replace the existing Webmail system.

Q: When i create new users, they have only mail and contacts enabled, why?
A: The default module access is webmail, all others have to be enabled through te provisioning interface as described in the provisioning manual

Q: What is the context admin user for?
A: The context admin is a special user in the groupware who is able to log in to the GUI. This user gets shared items from deleted users on deletion.

Q: How do i report bugs to Open-Xchange?
A: Bugs are to be reported via the Open-Xchange ticket system. New tickets are created through an email to For those who have a support contract, the support registration code needs to be in the body of that email.

Q: Why is the link in notification mails broken?
A: The link is generated from the template in the configuration file /opt/open-xchange/etc/groupware/

Q: Why do i get an error when i click on Extras in the groupware GUI?
A: Behind that extra link, there is a plugin which can also be a own developed one. The Default plugin, shipped with the software is to be configured in the file /opt/open-xchange/etc/groupware/

Q: What kind of authentication plugins are available?
A: The default plugin, shipped with the software, authenticates against the Open-Xchange database. Other examples are included in the development documentation.

Q: Is there a limit for the number of users, groups and resources in a context?
A: basically there only is a theoretical limit of 2^31 for all together per context

Q: Why do resources need to have a email address and for what is it used?
A: A email address for a resource is required by outlook so that outlook is able to manage resources. The OX server does not sent emails to that address.