Zimbra Collaboration Suite 7.0
Zimbra Collaboration Suite 7.0
Administrator's Guide
Open Source Edition


Managing ZCS Configuration > Zimbra Free/Busy Interoperability

Zimbra Free/Busy Interoperability
When ZCS is deployed in a mix of ZCS servers and Microsoft Exchange servers and Calendar is an important feature with your users, you can set up free/busy scheduling across the mix so that users can efficiently schedule meetings.
ZCS can query the free/busy schedules of users on Microsoft Exchange 2003/2007 servers and also can propagate the free/busy schedules of ZCS users to the Exchange servers.
To set free/busy interoperability, the Exchange systems must be set up as described in the Exchange Setup Requirements section, and the ZCS Global Config, Domain, COS and Account settings must be configured. The easiest way to configure ZCS is from the administration console.
Note:
Exchange 2003/2007 Setup Requirements.
For Exchange 2003, the following is required:
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ZCS users must be provisioned as a contact on the AD using the same administrative group for each mail domain. This is required only for ZCS to Exchange free/busy replication.
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The Exchange user name must be provisioned in the account attribute zimbraForeignPrincipal for all ZCS users. This is required only for ZCS to Exchange free/busy replication.
Configuring Free/Busy on ZCS
To set Free/Busy Interoperability up from the administration console, configure the following:
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Add the o and ou values that are configured in the legacyExchangeDN attribute for Exchange in either the Global Config or Domain Interop tab or in the Class of Service (COS) Advanced tab. The o and ou values correspond to the ZCS domain attribute zimbraFreebusyExchangeUserOrg.
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In the Accounts Free/Busy Interop tab, configure the foreign principal for the account. The cn setting in the legacyExchangeDn attribute corresponds to the zimbraForeignPrincipal attribute. This sets up a mapping from the ZCS account to the corresponding object in the AD.
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To find these settings on the Exchange server, you can run the Exchange ADSI Edit tool and search the legacyExchangeDN attribute for the o= , ou= , and cn= settings.
Global Config Setup
The ZCS Global Config Settings are configured from the Interop tab on the administration console. Here you configure the Exchange server settings as follows:
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Exchange user name and password. This is the name of the account in Active Directory and password that has access to the public folders. These are used to authenticate against the Exchange server on REST and WebDAV interfaces.
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The O and OU used in the legacyExchangeDN attribute. Set at the global level this applies to all accounts talking to Exchange.