ZCS Administrator's Guide 8.0.3
ZCS Administrator's Guide 8.0.3
Open Source Edition


Managing Configuration > Zimbra Free/Busy Calendar Scheduling

Zimbra Free/Busy Calendar Scheduling
The Free/Busy feature allows users to view each other’s calendars for efficiently scheduling meetings. You can set up free/busy scheduling across ZCS and Microsoft Exchange servers.
ZCS can query the free/busy schedules of users on Microsoft Exchange 2003, 2007, or 2010 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.
Exchange 2003/2007/2010 Setup Requirements.
The following is required to set up the free/busy feature:
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The ZCS server must be able to access the HTTP(S) port of IIS on at least one of the Exchange servers.
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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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For ZCS to Exchange free/busy replication, the Exchange user email address must be provisioned in the account attribute zimbraForeignPrincipal for all ZCS users.
Configuring Free/Busy on ZCS
To set Free/Busy Interoperability up from the administration console, the global config, Domain, COS and Account settings must be configured as described here.
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Add the o and ou values that are configured in the legacyExchangeDN attribute for Exchange on the Global Config Free/Busy Interop page, the Domain Free/Busy Interop page or on the Class of Service (COS) Advanced page. Set at the global level this applies to all accounts talking to Exchange.
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