Exchange Mailbox Assistants service crashes when you try to change a recurring calendar item or publish free/busy data in an Exchange Server 2010 environment

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Article ID: 2787023 - View products that this article applies to.
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Symptoms

Assume that a calendar contains some recurring meetings or appointments in a Microsoft Exchange Server 2010 environment. Additionally, assume that you try to change a single item in a series of recurring calendar items (for example, you change the recurring range of a single item), or you try to publish the calendar's free/busy data. In this scenario, the Microsoft Exchange Mailbox Assistants service (MSExchangeMailboxAssistants.exe) crashes on the Exchange Server 2010 Mailbox server.

Cause

This issue occurs because a System.ArgumentOutOfRangeException exception occurs when the Exchange Mailbox Assistants service processes a recurring calendar item that contains corrupted recurrence binary large object (BLOB) data.

Resolution

To resolve this issue, install the following update rollup:
2746164 Description of Update Rollup 6 for Exchange Server 2010 Service Pack 2

Status

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

More information

For more information about how to publish free/busy data, go to the following Microsoft website:
How to publish free/busy data
For more information about recurrence BLOBs, go to the following Microsoft website:
General information about recurrence BLOBs

Properties

Article ID: 2787023 - Last Review: February 12, 2013 - Revision: 1.0
Applies to
  • Microsoft Exchange Server 2010 Service Pack 2, when used with:
    • Microsoft Exchange Server 2010 Enterprise
    • Microsoft Exchange Server 2010 Standard
Keywords: 
kbqfe kbfix kbsurveynew kbexpertiseinter KB2787023

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