Article ID: 2533538 - Last Review: July 28, 2011 - Revision: 3.0

You cannot look up the free/busy information of a user who is located on an Exchange Server 2010 organization from another Exchange Server 2010 organization

View products that this article applies to.
System TipThis article applies to a different operating system than the one you are using. Article content that may not be relevant to you is disabled.
Expand all | Collapse all

SYMPTOMS

Consider the following scenario between two on-premises Microsoft Exchange Server 2010 organizations (organization A, and organization B):
  • You set up federated delegation, or federated sharing between organization A and organization B.
  • You set up Threat Management Gateway, or set up a device that is capable to SSL offloading in front of organization A.
In this scenario, you cannot look up the free/busy information of a user who is located on organization A from organization B. Therefore, the following scenarios are affected:
  • Sharing free/busy information between two organizations that cannot setup AD trust.
  • Sharing a person-to-person calendar over the federated delegation.
  • Office 365 coexistence scenarios that depend on federated delegation to provide a cross-premises experience.
  • A live@edu user who uses federated delegation to share free/busy information between on-premises servers and datacenters.
Back to the top

RESOLUTION

To resolve this issue, install the following update rollup:
2579150  (http://support.microsoft.com/kb/2579150/ ) Description of Update Rollup 4 for Exchange Server 2010 Service Pack 1
Back to the top

WORKAROUND

To work around this issue, disable SSL offloading on Threat Management Gateway or on the device that is capable to SSL offloading.
Back to the top

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Back to the top

MORE INFORMATION

For more information about federation, visit the following Microsoft website:
General information about federation (http://technet.microsoft.com/en-us/library/dd335047.aspx)
For more information about federated delegation, visit the following Microsoft website:
General information about federated delegation (http://technet.microsoft.com/en-us/library/dd638083.aspx)
For more information about federated sharing, visit the following Microsoft website:
General information about federated sharing (http://technet.microsoft.com/en-us/library/dd638083(EXCHG.140).aspx)
Back to the top
APPLIES TO
  • Microsoft Exchange Server 2010 Service Pack 1, when used with:
    • Microsoft Exchange Server 2010 Enterprise
    • Microsoft Exchange Server 2010 Standard
Back to the top
Keywords: 
kbqfe kbexpertiseinter kbfix kbhotfixrollup kbsurveynew KB2533538
Back to the top